Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Population projections 2016-2100:
Main results
Marianne Tønnessen, Stefan Leknes
and Astri Syse
More inhabitants in Norway, more elderly, more immigrants and more people in central areas. These are the
future population trends projected in the main alternative.
The population of Norway has seen rapid growth over
the last decade, and in 2016 stands at just over 5.2
million. Our projections show that the population will
What do the H-M-L abbreviations mean?
The results of a population projection are largely dependent on the assumptions used for the different components.
Since assumptions are not absolutely certain, a number of
alternative projections are drawn up, with different combinations of assumptions. These are described using four
letters in the following order:
•
•
•
•
Fertility
Life expectancy
Internal migration
Immigration
The main alternative, MMMM, uses the medium level for
each of the components. These are the assumptions that
we consider to be the most plausible, and MMMM is the
main alternative for the population projections.
The assumptions can be combined in a variety of ways.
For example, the LHML alternative describes a population
trend with low fertility, high life expectancy, medium internal migration and low immigration, i.e. high ageing.
For fertility, life expectancy and immigration, we create
high, medium and low alternatives, but for internal migration we do not have high or low alternatives. We draw
up alternatives with constant (konstant in Norwegian) immigration (MMMK) and constant life expectancy (MKMM),
and alternatives without internal and international migration (MM00) and with zero net migration (MMM0).
Although these last two are not considered to be particularly realistic, they still have analytical value.
It is unlikely that fertility, life expectancy and immigration
will all remain high (or low) throughout the relevant period. Nevertheless, the span between the HHMH and LLML
alternatives illustrates the potential degree of uncertainty
surrounding the projections and that the results are largely
dependent on the assumptions.
continue to grow, but the uncertainty associated with
such forecasts becomes greater the farther ahead we
look (Figure 1). In the main alternative (MMMM, see
box), the population of Norway will pass the 6 million
mark around 2030, and will reach 7 million by 2060.
This alternative assumes a medium development in
fertility, life expectancy and immigration. The determining factors behind the population growth in the
main alternative are a relatively high net migration and
an excess of births.
In the alternative for high national growth (HHMH),
Norway passes 6 million within just ten years, and the
strong growth continues throughout the period. This
is due to higher fertility, higher life expectancy, and
a significantly higher net migration than in the main
alternative (MMMM). The alternative for low growth
(LLML) never reaches the 6 million mark. The population stops growing by around 2060, and the population
of Norway begins to slowly decline.
Figure 1: Population as of 1 January. Registered and projected in
three alternativesr
Millions
16
High national growth
(HHMH)
14
12
10
Main alternative
(MMMM)
8
6
Low national growth
(LLML)
Registered
4
2
0
1950
1980
2000
2020
2040
2060
2080
2100
Source: Statistics Norway
Marianne Tønnessen is head of the population projections and a senior adviser in the Unit for public economics and demographic models
(mto@ssb.no)
Astri Syse is a senior researcher in the Unit for public economics and demographic models (sya@ssb.no)
Stefan Leknes is a researcher in the Unit for public economics and demographic models (sfl@ssb.no)
Statistics Norway
1
Population projections 2016-2100: Main results
Population growth in 2015
Last year, the population in Norway increased by 48
000, which is the lowest growth in recent years: since
2007, annual growth has been between 56 000 and
66 000. Nevertheless, population growth in Norway
remains strong. This is partly because immigration
exceeded emigration by about 30 000 in 2015, and
because there were almost 20 000 more births than
deaths.
Figure 2 shows the number of births, deaths, immigrations and emigrations since 2000. The figures for births
and deaths have remained relatively stable. The slight
decrease in the number of births since 2009 is not due
to a fall in the number of women of childbearing age;
it is a result of a drop in fertility among women. This
reflects the fact that women in their 20s now are having
their first child later than previously, and that fewer
women are having three or more children (Lappegård
and Dommermuth 2015). The fall in the number of
deaths is partly due to an increasing life expectancy,
and partly due to cohorts from the inter-war years now
reaching the end of their life expectancy. The number
of deaths as a percentage of the population currently
stands at an all-time low: in 2014 and 2015 only 0.8
per cent of the population died – despite the fact that
today’s population is older than before. This is the lowest crude mortality rate since the annual registration of
deaths began in Norway in 1735.
Translation from Economic Survey 21 June 2016
Figure 2: Births, deaths, immigrations and emigrations, 20002015
Immigration
80 000
70 000
60 000
Births
50 000
40 000
Deaths
30 000
20 000
Emigrations
10 000
0
2000
2005
2010
2015
Source: Statistics Norway
Figure 3: Population growth, net migration and excess of births,
2000-2015
80 000
70 000
60 000
50 000
The graphs for immigration and emigration are subject to more fluctuations than the other components.
Immigration was particularly high in 2011 and 2012,
but has since fallen somewhat, primarily due to a
decline in labour immigration. The high number of
asylum seekers who arrived in Norway in autumn 2015
has only had a slight impact on this figure since the
majority of asylum applications had not been processed
by the end of the year, and the applicants were not
therefore included in Statistics Norway’s population
statistics. Emigration has increased somewhat in recent
years, and in 2015 more people are estimated to have
left Norway than during the largest wave of emigration to the USA at the end of the nineteenth century
(Cappelen et al. 2016).
40 000
Net migration
30 000
20 000
10 000
0
Excess of births
2000
2005
2010
2015
Source: Statistics Norway
Figure 4: Population growth rate, 1850-2015
Per cent
1.8
1.6
The combination of higher emigration and lower immigration results in a net migration of almost 18 000
less than in the peak years of 2011 and 2012. Figure 3
shows the proportion of population growth that is due
to net migration and the proportion due to an excess
of births (births minus deaths) in the last 15 years. Net
migration is the main reason for the high population
growth in the last decade. In 2012, net migration accounted for 72 per cent of the population growth, and
by 2015 this share had fallen to 62 per cent.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
Thus, the population growth of 2011 and 2012 has
slowed, and as shown in Figure 3 we are now emerging
from a period of particularly high growth. This pattern
is not new to Norway, and Figure 4 shows the annual
2
-0.2
-0.4
1850
1870
1890
1910
1930
1950
1970
1990
2015
Source: Statistics Norway
Statistics Norway
Translation from Economic Survey 21 June 2016
Figure 5: Immigrants and the rest of the population by age,
2016
80 000
70 000
Population projections 2016-2100: Main results
Immigration has thus helped to even out the age
distribution in Norway. However, cohorts that were
originally large have also increased due to immigration.
This includes people born in 1969, who have comprised
the largest cohort since birth.
Immigrants
60 000
50 000
40 000
30 000
Rest of the population
20 000
10 000
0
0
10
20
30
40
50
60
70
80
90 100
year years years years years years years years years years years
Source: Statistics Norway
Figure 6: Men and women, by age, 2016
45 000
40 000
Men
35 000
Women
30 000
25 000
20 000
15 000
10 000
5 000
0
0
10
20
30
40
50
60
70
80
90 100
year years years years years years years years years years years
Source: Statistics Norway
population growth rate dating back to 1850. Except for
the years with high emigration in the 1880s, the population has risen every year. The high growth rate of the
last decade was last seen in the years following World
War II, when fertility was high and life expectancy rose
sharply.
The last growth period was primarily due to high immigration. Since immigrants are often young adults
when they arrive, they have a particular impact on
the size of the age groups between 20 and 50 years
(Figure 5). In the rest of the population, the group in
their 30s is particularly small due to the low birth rate
in the late 1970s and early 1980s. The smallest cohort
among the non-immigrants below age 70 is the 1983
cohort – those who were 32 years old at the New Year.
Thirty-two-year-olds also make up the largest cohort of
immigrants in Norway. In this age group, immigrants
constitute 30 per cent of the population.
Statistics Norway
Men are in the majority in all of the younger age groups
(Figure 6). This is partly because male immigrants
outnumber female immigrants, and because more boys
than girls are born. This pattern is reversed by the age
of 67, and the 85 and above group has twice as many
women as men.
Figures 5 and 6 show four peaks in the age distribution
of the population as a whole. The four peaks relate to
69-year-olds, who were born in the baby boom year
1946; 46-year-olds from 1969; 25-year-olds, who were
born in 1990 when fertility started to pick up again and
many of whom are immigrants; and 6-year-olds from
2009, the last peak year for fertility in Norway.
Results from this year’s projections
The composition of the current population by sex and
age is a determining factor in the population projections. Today›s population is a core element in our
assumptions, and many of the projected population
changes reflect how large or small cohorts will reach
ages where child birth, migration and death are more
likely.
The population projections show how population
growth will develop when we factor in different assumptions about future fertility, mortality, internal
migration, immigration and emigration. The method
behind producing population projections is explained
in a separate documentation memorandum (Aase et al.
2014). In the main alternative (MMMM, also referred
to as the medium alternative), we have used the assumptions we consider to be the most likely. However,
as future projections are inherently uncertain, we also
present other alternatives with different assumptions
(see box). Table 1 summarises some of the assumptions
used in this year’s population projections.
More inhabitants
The main alternative in the population projections
(MMMM) estimates population growth in Norway
throughout this century, with a 20 per cent increase by
2040.
Figure 7 shows how the population in Norway has continued to pass new millions, reaching 5 million in 2012.
The last million mark was 37 years earlier in 1975.
Today, the population of Norway is 5.2 million, and the
main alternative of a projected annual growth between
40 000 and 60 000 over the next two decades will see
us passing 6 million by around 2030. By then, Norway
will have gone from 5 to 6 million inhabitants in less
than 20 years, making this the fastest acceleration to
the next million in Norway’s history. Growth will then
continue, but at a slightly slower pace. Around 2060 we
3
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Figure 8: Projected growth rate in the municipalities 2016-2040,
main alternative (MMMM)
Table 1: Overview of assumptions in the 2016 population
projections
Alternativesa
M
H
Registered
Total fertility rate (child per
woman)b
2015
2016
2060
Life expectancy at birth
(years). menc
2015
2016
2060
Life expectancy at birth
(years). womenc
2015
2016
2060
Immigrations per yeard
2015
2016
2020
2040
2060
Net migration per yeare
2015
2016
2020
2040
2060
a
L
1.73
1.72
1.74
1.90
1.96
1.55
1.53
80.3
87.2
80.8
90.3
79.9
83.3
84.0
89.2
84.4
91.9
83.6
86.0
71 000
61 000
63 000
68 000
83 000
72 000
92 000
118 000
60 000
52 000
51 000
46 000
38 000
26 000
26 000
27 000
49 000
34 000
45 000
58 000
27 000
19 000
18 000
15 000
80.2
83.9
64 700
29 800
L = low, M = medium and H = high
b
TFR is calculated for different groups of women. In the medium alternative,
the assumption is that the ASFRs will remain stable at today’s level. In the high
and low alternative, respectively, they will be 13 per cent above or below those
that are observed today. As the composition of the groups varies over time, the
TFR fluctuates slightly
c
The figures for registered life expectancy are not fully comparable with those
presented in the population statistics.
d
These figures do not include persons who have moved to and from Norway (or
vice versa) during the calendar year.
e
The H and L figures for net migration are taken from the MMMH and MMML
alternatives.
Source: Statistics Norway.
Figure 7: Population in Norway, registered 1800-2016 and
projected to 2100 in the main alternative (MMMM)
Millions
9
More than 5 per cent decline
Unchanged
5 to 20 per cent growth
Over 20 per cent growth
Registered
Projected (MMMM)
8 millions
8
7 millions
7
6 millions
6
5 millions
5
4 millions
4
3 millions
3
2 millions
Source: Statistics Norway. Map data: Kartverket
will pass the 7 million mark, and by the late 2080s the
number of inhabitants will surpass 8 million.
In the alternative with high national growth (HHMH),
growth is even faster, and the 6 million mark will be
reached in just ten years (see Figure 1). In the alternative for low national growth (LLML), however, the
population will remain below 6 million, reaching 5.9
million by around 2050 before growth stagnates and
the population then begins to decrease. In all other
combinations of high, medium and low alternatives,
we go from 5 to 6 million quicker than for any other
million.
More in central areas
We assume that central areas will see the highest
population growth, and that Norway’s cities will
grow considerably. In the main alternative (MMMM),
the populations of Oslo, Bergen and Trondheim will
surpass 700 000, 300 000 and 200 000 respectively
over the next ten years. Strong growth will also be seen
in many of the municipalities situated near regional
centres. One such example is Ullensaker municipality
in Akershus, where growth will be over 50 per cent by
around 2040.
2
1 million
1
0
1800
1850
1900
1950
2000
2050
2100
At the same time, almost 70 municipalities will see a
fall of more than 5 per cent in their populations. Most
of these municipalities are situated in the northern half
of the country, and many are rural. The map in Figure
Source: Statistics Norway
4
Statistics Norway
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
8 shows the projected population growth in municipalities. Municipalities highlighted in blue will have a
declining population.
Figure 9: Population in four age groups, registered and
projected in the main alternative (MMMM)
9 000 000
Registered
Projected
8 000 000
80 years
and over
7 000 000
70-79 years
6 000 000
5 000 000
18-69 years
4 000 000
3 000 000
2 000 000
1 000 000
0-17 years
0
1900
1940
1980
2020
2060
2100
Source: Statistics Norway
Figure 10: Population by age, registered in 2016 and projected
in the main alternative (MMMM) in 2040 and 2060
100 000
2060
80 000
2040
2016
60 000
All counties will see growth, but to varying degrees.
The most populous counties will grow the most, both in
terms of percentage and absolute numbers. Growth will
be highest in Oslo, at 30 per cent in the main alternative, followed by Akershus with 29 per cent. Two counties in the north, Nordland and Finnmark, will have the
lowest growth rate, with 7 per cent by 2040. The inland
counties and the northern counties will generally have
the lowest growth, in addition to Sogn og Fjordane and
Telemark.
The results of the regional population projections are
discussed in more detail in Norwegian in the article
“Regionale befolkningsframskrivinger 2016-2040:
Flytteforutsetninger og resultater” (Leknes 2016).
More elderly
The age composition of the population is set to change
appreciably in the years ahead. As Figure 9 shows, the
oldest age groups will see particularly strong growth.
This is primarily due to the assumption of a steadily
increasing life expectancy. A more detailed discussion
of these assumptions are available in Norwegian in the
article “Befolkningsframskrivinger 2016: Dødelighet
og levealder” (Syse et al. 2016a). In addition, the large
birth cohorts from the post-war era will gradually be
among the eldest in society.
40 000
The same trend is illustrated in Figure 10, which shows
the current population by age in years, and the projected figures for 2040 and 2060. All age groups will
experience growth, but the most pronounced will be
among the most elderly.
20 000
0
0
10
20
30
40
50
60
70
80
90 100
year years years years years years years years years years years
Source: Statistics Norway
Figure 11: Population by age, registered in 2016 and projected
in three alternatives in 2050
120 000
100 000
80 000
HLMH
MMMM
60 000
LHML
2016
40 000
20 000
0
0
10
20
30
40
50
60
70
80
90 100
years years years years years years years years years years years
Source: Statistics Norway
Statistics Norway
The number of persons aged 70 years or over will double within three decades – from almost 600 000 today
to nearly 1.2 million. For those aged 80 and over, the
figure will double in just two thirds of that time – from
220 000 today to 440 000. These figures are taken from
the main alternative (MMMM), but the sharp rise in the
number of elderly persons is seen in all the population
projection alternatives. Figure 11 shows the current
age distribution and the projected figure for 2050 in
the main alternative, and in alternatives with strong
ageing (low fertility, high life expectancy and low immigration – LHML) and weak ageing (high fertility, low
life expectancy and high immigration – HLMH). The
increase among the eldest is roughly the same.
The proportion of elderly in the population, however,
varies more between the different alternatives because
the number of people in the younger age groups varies. Figure 12 shows the proportion of elderly people
in different age groups, as projected in three ageing
alternatives. The decline we have seen in recent decades, particularly in the proportion aged 70-79 years,
is partly due to the small cohorts of children from the
5
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Figure 12: Proportion of elderly in different age groups,
projected in three alternatives
Per cent
12
10
Figure 14: Proportion aged 70+ in the municipalities, projected
in the main alternative (MMMM) in 2040
Strong ageing (LHML)
Main alternative (MMMM)
Weak ageing (HLMH)
Registrert
8
70-79 years
6
4
80-89 years
2
90 years and over
0
1950
1980
2000
2020
2040
2060
2080
2100
Per cent
12 - 19
20 - 25
over 25
Source: Statistics Norway
Figure 13: Burden of care for children and the elderly, registered
and projected in the main alternative (MMMM)
1.2
Registered
Projected
1.0
Source: Statistics Norway. Map data: Kartverket
0.8
0.6
Burden of care
for the elderly
0.4
0.2
Burden of care
for children
0.0
1900 1920 1940 1960 1980 2000 2020 2040 2060 2080 2100
Source: Statistics Norway
1930s now having reached this age, and to the generally high population growth in the younger age groups.
For the same reason, the proportion of 80-89 year-olds
and those who are 90 and over is not expected to rise
substantially any time soon. However, these shares will
start to increase sharply in all alternatives from the
beginning of the 2030s. In the longer term, the shares
vary considerably between the alternatives. Even in
the weak ageing alternative, however, where we have
assumed high fertility, low life expectancy and high
immigration, the share of elderly in Norwegian society
will increase. Today, 11 per cent of the population,
which is about every ninth person, is aged 70 years or
over. In the medium alternative, this share increases to
19 per cent in 2060, which corresponds to almost 1 in
every 5 persons.
6
In order to describe the relationship between people
considered to be of a working age and those of a nonworking age, the term “burden of care” is often used.
This is defined as the number of children (0-19 years)
plus the number of elderly (70+), divided by the number of people considered to be of a working age (20-69
years). Figure 13 shows the development in the burden
of care, broken down into the burden of care for the
elderly (the number aged 70+ divided by the number
aged 20-69) and the burden of care for children (the
number aged 0-19 divided by the number aged 20-69).
Previously, the burden of care for children dominated,
but as the projection period continues, the number of
elderly among the working age population increases.
Towards the end of the century, the number of people
aged 70 or over surpasses the number of children and
teenagers in Norway. Thus, the burden of care is almost
evenly distributed for children and the elderly – but
slightly higher for the elderly.
Population ageing in Norway will be much stronger in
rural areas than in the towns. There are three reasons
for this: young people often move to central areas; immigrants often settle in towns; and both of these groups
often have children in central areas. Only about one in
eight persons in Oslo will be aged 70 or over in 2040,
while every third person in some rural municipalities
will be 70 years or older, according to the main alternative. The map in Figure 14 shows the geographical
distribution of ageing in Norway in 2040. The ageing
is weaker in and around the major urban areas, and is
Statistics Norway
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Figure 15: Immigrants, persons born in Norway to two
immigrant parents and the rest of the population, registered
and projected in the main alternative (MMMM)
Millions
10
Figure 18: Number of elderly, immigrants and rest of the
population, registered and projected in the main alternative
(MMMM))
6 000 000
Registered
Neither immigrants
nor elderly (70+)
Projected
5 000 000
8
4 000 000
Rest of the population
6
3 000 000
Immigrants
4
2 000 000
Born in Norway to
two immigrant parents
2
Elderly (70+)
1 000 000
Immigrants
0
1990
2020
2040
2060
2080
2100
Source: Statistics Norway
Figure 16: Burden of care for the elderly, projected in different
alternatives
0.6
Strong ageing
(LHML)
No net migration
(MMM0)
0.5
Low immigration
(MMML)
0.4
Main alternative
(MMMM)
High immigration
(MMMH)
0.3
Weak ageing
(HLMH)
0.2
0.1
2016
2030 2040 2050 2060 2070 2080 2090 2100
Source: Statistics Norway
Figure 17: Immigrants and non-immigrants aged 70+, projected
in the main alternative (MMMM)
2 000 000
1 800 000
1 600 000
1 400 000
1 200 000
1 000 000
Elderly non-immigrants
800 000
600 000
400 000
Elderly immigrants
200 000
0
2016
2030 2040 2050 2060 2070 2080 2090 2100
Source: Statistics Norway
Statistics Norway
0
2016
2030
2040
2050
2060
2070
2080
2090
2100
Source: Statistics Norway
stronger inland, in the north and in rural areas. This
is discussed in more detail in Norwegian, in Leknes
(2016).
More immigrants
Another group that will also double over the next three
decades is immigrants. In the main alternative, the
figure will increase from the current 700 000 to 1.4
million by the mid-2040s, and to 1.7 million in 2060
(Figure 15). The number of persons born in Norway
to two immigrant parents will also see a significant
increase. This is based on the expectation of relatively
high net migration, which is discussed in more detail
in Norwegian in the article “Befolkningsframskrivinger
2016-2100: Inn- og utvandring” (Cappelen et al. 2016).
The projections of immigration to Norway entail a large
degree of uncertainty, which in turn means the number
of immigrants that will live in Norway in the future is
also the subject of much uncertainty. In the alternative
with high immigration (MMMH), the number of immigrants in Norway in 2060 is 2.4 million, compared to
1.4 million in the low alternative (MMML).
Immigration also affects the ageing of a population.
The fact that immigrants tend to be relatively young
when they arrive in the country helps slow the ageing.
However, even a high immigration level is not enough
to stop ageing completely, partly because immigrants
also age. This is illustrated in Figure 16, which shows
the burden of care for the elderly (the number over
70 divided by the number aged 20-69 years) in different projection alternatives. In the MMM0 alternative,
there is no net migration to Norway, while the MMMH
and MMML alternatives assume high and low future
immigration. All of the alternatives entail an increasing
burden of care. The greatest burden of care is in the alternative with weak ageing and the alternative without
net migration. The positive net migration to Norway
therefore curbs the future burden of care to a degree,
but even with high immigration the burden of care will
7
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Figure 19: Population figures in the Nordic countries, registered
and projected
14 000 000
Figure 20: Population growth rate in the world, Europe and
Norway, registered and projected in the main alternatives
Per cent
2.5
The world
12 000 000
2.0
10 000 000
Sweden
1.5
8 000 000
1.0
Norway
6 000 000 Denmark
Finland
4 000 000
0.5
Norway
Europe
0.0
2 000 000
Iceland
0
2000
2010
2020
2030
2040
2050
Source: The Nordic statistics agencies
increase. The alternative with high immigration projects an increase in the burden of care from the current
0.17 to 0.28 in 2060, while the alternative without net
migration shows an increase to 0.41 in 2060.
-0.5
1950
1980
2000
2020
2040
2060
2080
2100
Source: World Population Prospects 2015, medium variant (Europe and the
world) and Statistics Norway
Figure 21: Population in the different continents, registered and
projected
Billions
6
Asia
5
Today’s immigrants in Norway are relatively young.
However, they will gradually age, and the main alternatives will show a marked increase in the number of
immigrants in the oldest age groups, as illustrated in
Figure 17. At present, only 4 per cent of the population
aged 70 or over are immigrants. In the main alternative, this increases to 27 per cent in 2060, when 1 in
every 4 people will be in the oldest immigrant groups.
Immigrants and elderly are the two main groups that
are growing the fastest, according to the main alternative. The group who are neither immigrants nor age 70
or above shows only weak growth up to 2050 due to
an increase in the number of persons born in Norway
with two immigrant parents. Figure 18 shows how the
number of immigrants, those age 70 and above, and the
rest of the population increases in the main alternative
(the first two groups are not mutually exclusive; it is
possible to be both an immigrant and age 70 or above).
4
Africa
3
2
1
Latin America
Europe
USA and Canada
Oceania
0
1950
1980
2000
2020
2040
2060
2100
Source: World Population Prospects 2015, medium variant
Figure 22: Population in Norway, registered and projected by
the UN (purple lines), Eurostat (yellow line) and Statistics
Norway (SN green lines)
Millions
16
SNs high
14
Surpassing Finland and Denmark
Population growth in our main alternative is relatively
high compared with the projected population growth in
some other countries. Figure 19 shows the population
figures that the Nordic countries’ statistics agencies
have projected for their own countries (in the main
alternatives). In the event that these projections prove
to be accurate, the population of Norway will be higher
than that of Finland in 2025 and higher than Denmark
by 2040.
2080
12
UNs high
10
Eurostat
8
6
SNs main alternative
UNs main alternative
SNs low
UNs low
Registered
4
2
Over the past decade, the strong population growth
in Norway has led to a higher growth rate in Norway
than in the global population in some years. Figure 20
shows how the growth in Norway previously followed a
8
0
1980
2000
2020
2040
2060
2080
2100
KSource: World Population Prospects 2015, Europop 2013 and Statistics
Norway
Statistics Norway
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Figure 23: Population of Norway, registered and projected in
2014 (grey lines) and 2016 (green lines)
Millions
16
HHMH
14
Changes to the assumptions and the models have been
made since the last projection. The main changes are as
follows:
• New assumptions for fertility, which assume somewhat
fewer children in the future (Syse et al. 2016b).
12
10
MMMM
8
LLML
6
4
Changes since last projection
Registered
2
0
1990 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100
Source: Statistics Norway
European trend, but that Europe now has virtually zero
growth while annual growth in Norway is approximately 1 per cent. In our population projections, Norway
will continue to follow the global growth rate for some
decades to come, and towards the end of the century
Norway’s growth will be higher than global population
growth. The figures for the expected population growth
in Europe and the world are taken from the UN’s latest
population projections (United Nations 2015). One
key reason behind the UN’s projected lower global
population growth for the rest of this century is the
anticipated end to population growth in Asia, and the
expectation that the number of Asians will fall (Figure
21). Africa is the continent where the UN still expects a
considerable population growth in the future, primarily
because of the high fertility rate.
Other projections for Norway
The UN produces population projections for all countries in the world, including Norway, and new UN
projections were published last year (United Nations
2015). The EU’s statistics agency Eurostat also produces population projections for Norway, the most
recent of which was in spring 2014. Figure 22 shows
the various projections for Norway. Our main alternative is lower than Eurostat’s 2014 projection. Our
latest projections are slightly lower in the short term
compared with the new UN projections, but higher in
the long term, and our alternative for high national
growth (HHMH) is appreciably higher than the UN’s
projection.
There are also disparities between our previous projection from June 2014 and the latest one, see Figure 23.
The new main alternative shows a higher population
in the long term, due to both an upward adjustment of
the expected immigration and a somewhat higher life
expectancy. However, the population in the first two
decades will be lower than in the previous projection.
This is largely due to a lower population than assumed
Statistics Norway
• New assumptions for mortality, which assume a slightly
higher life expectancy for men than previously (Syse
2016a).
• New assumptions for internal migration, based on
migration patterns in the last ten years (five-year rates
were used previously) (Leknes 2016).
• New assumptions for immigration, with higher longterm immigration than previously and with a short-term
addition to the immigration due to the asylum situation
in Norway and Europe. This assumption also uses different UN projections to distinguish between the different
immigration alternatives. The probability of emigration
has also been increased somewhat for the next few
years (Cappelen et al. 2016).
• The rates used in the population projections this time
are based mainly on developments over the past decade, compared with five years previously. A longer time
span will better reflect the different economic cycles
in Norway, and the rates for small groups will also be
more robust when the calculation is based on a longer
period. The disadvantage of a longer time span is that
we are less likely to capture any new trends, but this is
partly covered by giving more weight to the most recent
period.
• New for this year is that we will also publish projected
probabilities of death by age in years and sex.
Update of the population projections
The population projections are now published every two
years. If updates are needed in the intervening years, this
can be done as follows:
• When new population figures for 1 January are published the actual figure can be compared with the projected figure.
• The difference between the projected and actual figure
can then be deducted from/added to the projected figures for all future years.
• The difference can either be given as a percentage or in
absolute numbers.
Compared to producing a new projection, this is a fairly
simplified way of re-calculating the population. A new
projection will take far greater account of the age structure and different probabilities in relation to births, deaths,
internal migration, immigration and emigration for various
groups, as well as new trends in these probabilities.
in the 2014 projection, primarily due to lower immigration, and a downward adjustment of fertility assumptions. The text box provides more details of the changes
since the last projection.
9
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
Accuracy of the 2014 projections
Population growth in 2014 was slightly lower than projected, but the deviation from the main alternative was
just 1 700 (Figure 24). In 2015, the disparity was greater:
actual population growth was almost 10 000 lower than
the projected figure. This difference is partly due to the
lower number of births than expected, and a sharp fall in
immigration – which was the result of a decline in labour
immigration. Most of the asylum seekers who arrived in
Norway in autumn 2015 were not included in the population statistics because they had not been granted residence
in Norway by the end of the year.
Among the municipalities, there were particularly large deviations for Trondheim and Bærum, where the population
in 2016 was higher than projected. Just over half of the
municipalities had a deviation of less than 1 per cent between the projected and actual population figure in 2016.
For a more thorough review of the accuracy of population
projections, see the article in Norwegian “Hvor godt treffer
befolkningsframskrivingene?” (Rogne 2016).
Figure 24. Annual population growth, registered and
projected in 2014
80 000
trends that are highly likely to characterize Norway’s
future population: continued population growth, larger
populations in central areas, more immigrants and
more elderly.
If the main alternative (MMMM) proves to be accurate,
Norway will pass the 6 million mark within 15 years.
At the same time, Oslo’s population will have increased
from the current 660 000 to 800 000, 1 million immigrants will be living in Norway (compared to the
current 700 000) and the proportion of the population
aged 70 and older will have risen by over 50 per cent.
More results from the population projections, detailed
figures, documentation and background material are
available in English at https://www.ssb.no/en/befolkning/statistikker/folkfram and in Statistics Norway’s
StatBank.
References
Aase. K. N., M. Tønnessen and A. Syse (2014): The
population projections: Documentation of the BEFINN
and BEFREG models. Notat 2014/25, Statistics Norway
(https://www.ssb.no/en/befolkning/artikler-og-publikasjoner/_attachment/182766?_ts=146956adcb8)
HHMH
70 000
Registered
60 000
MMMM
Cappelen, Å., T. Skjerpen and M. Tønnessen (2016):
Befolkningsframskrivinger 2016-2100. Inn- og utvandring. [In Norwegian] Økonomiske analyser 3/2016,
Statistics Norway
50 000
40 000
Lappegård, T. and L. Dommermuth (2015): Hvorfor
faller fruktbarheten i Norge? [In Norwegian]
Økonomiske analyser 4/2015, Statistics Norway
LLML
30 000
Leknes, S. (2016): Regionale befolkningsframskrivinger 2016-2040: Flytteforutsetninger og resultater. [In
Norwegian] Økonomiske analyser 3/2016, Statistics
Norway
20 000
10 000
0
2009
2010
2011
2012
2013
2014
2015
2016
2017
Source: Statistics Norway
Uncertainty in the figures
All projections of the future population, its composition
and geographical distribution are uncertain. The uncertainty increases the further into the future we look,
and the figures are even more uncertain in projections
for small groups, such as the population of municipalities by sex and age in years. Future immigration is
particularly subject to a large degree of uncertainty, but
fertility, mortality, immigration and internal migration
can also end up rather different than expected. The assumptions used in projections determine the outcomes
of the different alternatives, as evidenced by the variations between the different alternatives and the disparities between projections by other institutions.
Rogne, A. (2016): Hvor godt treffer befolkningsframskrivingene? [In Norwegian] Økonomiske analyser
3/2016, Statistics Norway
Syse, A., D. Pham and N. Keilman (2016a):
Befolkningsframskrivinger 2016-2100. Dødelighet
og levealder. [In Norwegian] Økonomiske analyser
3/2016, Statistics Norway
Syse, A., R. K. Hart and K. N. Aase (2016b):
Befolkningsframskrivinger 2016-2100. Fruktbarhet. [In
Norwegian] Økonomiske analyser 3/2016, Statistics
Norway
United Nations (2015): World Population Projections.
The 2015 Revision. http://esa.un.org/unpd/wpp/
Summary
Although all population projections are subject to varying degrees of uncertainty, there are nevertheless some
10
Statistics Norway
Translation from Economic Survey 21 June 2016
Population projections 2016-2100: Main results
Highlights from four articles (available only in Norwegian) describing the assumptions of
fertility, life expectancy, internal migration, immigration and emigration in more detail
FERTILITY
How do we estimate future fertility in the population projections?
In the model that projects the population at a national level
(BEFINN), we project the fertility for different groups of
women. In addition to calculating fertility for women from
Norway, we also factor in the fertility disparities between immigrant women in 15 combinations of country background
and period of residence in Norway. First, we ascertain the
output level for the different groups, then we make assumptions on how we think fertility will develop over time.
Fertility among immigrants
In order to estimate how many children will be born to
immigrant women in the future, the immigrant women
are divided into three country groups and five period of
residence groups (1 year or less, 2-3 years, 4-6 years, 7-11
years and 12 years or more). In total, this constitutes (3
x 5) 15 combinations of country and period of residence
groups. In order to determine the fertility output level in the
15 different groups, an age-specific fertility rate is calculated for each group as an average over the last ten years.
This is a weighted average where the last year with available data counts the most. In order to calculate the number
of Norwegian-born children to two immigrant parents we
also make assumptions about the proportion of immigrant
women who will have children with immigrant men (see
Figure 19 in Cappelen et al. 2016).
Fertility among the rest of the population
Once we have calculated the fertility output level for immigrant women, we calculate the fertility of other women
who are resident in Norway. Norwegian-born to one or two
immigrant parents are also included in this group. In order
to determine the fertility output level among the remainder
of the women, age-specific fertility rates are calculated for
the last year.
Regional fertility
The projections of regional fertility are based on the fertility disparities in the past decade between 68 geographic
regions – referred to as fertility regions. The future regional
fertility development is determined by adjusting the output
level in these regions proportionally with the future national fertility development. The regional fertility disparities
are thereby accounted for since the output level of each
fertility region is different, but we assume that the absolute
Statistics Norway
differences between fertility regions remain constant
throughout the entire projection period. The number of
births and 0-year-olds in the prognosis regions is then added
up for the counties. Then the 0-year-olds are broken down
into municipalities using 55 fertility profiles. These profiles
depend on the number of women in the municipality and
their fertility level.
Determining fertility assumptions
Once we have calculated the output level of fertility in the
16 groups (non-immigrant women and 15 groups of immigrant women), we need to make assumptions about how
fertility will develop over time. For each year in the projection period, we use a factor that adjusts the age-specific fertility rates up or down. In order to illustrate the great uncertainty attached to future fertility levels in Norway, we create
three different alternatives for the fertility assumptions: low,
medium (main alternative) and high. In combination, this
constitutes three annual factors. The factors are determined
by Statistics Norway after discussions with an advisory reference group consisting of fertility researchers.
Fertility assumptions for 2016
Based on a summary of empirical knowledge of fertility trends and figures for the number of births in the first
quarter of 2016, we believe that the decline in fertility that
we have seen since 2009 is about to come to an end. In the
main alternative, we assume therefore that the fertility for
non-immigrant women will remain relatively constant at the
2015 level (TFR 1.69). In the low alternative, we have chosen
to lower fertility relatively quickly to a level that is about 13
per cent lower than in 2015. This corresponds to a TFR of
1.48 for non-immigrant women. This level at just under 1.5
corresponds to the level in Sweden at the end of the 1990s
when they experienced an economic slump (SCB 2015). This
is also slightly lower than the EU average in recent years
(Eurostat 2016). In 2014, the average TFR in EU countries
was 1.58. In the high alternative, we have chosen to raise
fertility relatively quickly to a level that is correspondingly
much higher. This gives a TFR of 1.91 for non-immigrant
women. This is comparable with the 2009 level for this
group of women, when fertility last peaked in Norway.
11
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
LIFE EXPECTANCY
How are mortality and life expectancies calculated in the population projections?
Statistics Norway uses recognised models to project mortality in Norway. In these models, future mortality is mainly
determined based on empirical trends. We use the productratio variant of a Lee-Carter model, where the trend in
mortality for a selected time period, represented by two estimated time series, is extended using an ARIMA model. The
period used as input is determined prior to each projection.
This method gives us mortality rates by age in years and sex
up to and including the year 2100, which are subsequently
used in the models BEFINN and BEFREG. The projected
mortality rates are also used to calculate life expectancy at
birth and the remaining life expectancy at every age up to
and including 105 years. Calculations are made for men and
women separately and together.
In the model that projects the population at a national level
(BEFINN), projected mortality rates by age in years and sex
are used. We do not distinguish between immigrants and
the rest of the population. The regional model (BEFREG)
takes into account regional disparities in mortality. Here, our
assumptions are based on the mortality in the past decade in
every county and in each of Oslo’s districts.
Data
Figures on the number of deaths and the population size are
taken from Statistics Norway’s population statistics. We calculate age-specific death rates for men and women, and the
total for both sexes by age in years for each calendar for the
ages 0-100, and allow for the fact that deaths do not occur
linearly throughout the year. Age is defined as the age in
whole years at the end of the year. When the mortality rates
are calculated, an adjustment is made for extreme values.
Once we have calculated the mortality rates in the period
we have chosen to base our model on and made adjustments for extreme values, the actual modelling of projected
rates can begin.
The models
For details of the models and references to literature in the
field, see the documentation memorandum in English by
Aase et al. (2014). Initially, a product-ratio method is used
(Hyndman et al. 2013). The purpose of the method is to
reduce the correlation between the mortality rates for men
and women. A method based on the Lee-Carter model is
then applied (Lee and Carter, 1992, Li and Lee 2005, Lee
2000). This model was originally developed by Lee and
Carter in 1992, but has since been developed further. The
method estimates parameters of change in mortality levels
over time by sex and age. So far, we have only modelled
the observed mortality rates. In order to make assumptions
about how mortality will develop in the future, we use a
so-called ARIMA model (Wei 2006), which stands for AutoRegressive Integrated Moving Average. In this model, we include a so-called random walk with drift, which means that
we factor in a mortality trend that we expect to continue in
the future.
Uncertainty
Once we have calculated the age-specific mortality rates
for the entire projection period with the models presented above, uncertainty from the Lee-Carter modelling is
12
incorporated. Further uncertainty from the ARIMA modelling is estimated by simulating 2000 alternatives using boot
strapping. This gives us different paths for possible developments in future life expectancy. Statistics Norway’s population projections primarily use three alternative paths for the
future development of life expectancy: medium (M – the
main alternative), low (low life expectancy/high mortality) (L)
and high (high life expectancy/low mortality) (H). The estimated projected alternative is called the main alternative, for
which we give an 80 per cent prediction interval. The upper
limit in the prediction interval for mortality rates gives us the
low alternative, while the lower limit gives the high alternative. We also have a constant alternative (K), where the mortality rates in the main alternative for the first projection year
are kept constant throughout the entire projection period.
Discretionary assessments
The period used as input is determined prior to each projection. When assessing the plausibility of the projected mortality rates, we also make other discretionary assessments. If
adjustments seem appropriate, we make these in consultation with an advisory reference group consisting of mortality
researchers.
Life expectancy at birth and remaining life expectancy
After we have estimated age-specific mortality probabilities
in the projection period, we calculate life expectancy at birth
and the remaining life expectancy at each age level in each
projection year. We calculate this for the country as a whole
in three alternatives; for men and women separately, and for
both sexes combined. The latter is based on mortality probabilities for both sexes combined.
Life expectancy at birth refers to the number of years a
newborn baby will live if the relevant age-specific mortality
probabilities for a period (normally a calendar year) persist. Remaining life expectancy is defined as the remaining
number of years a person at a given age will live if the agespecific mortality probabilities for the remaining ages in the
period (normally a calendar year) persist. Statistics Norway
calculates the remaining life expectancy for each age level
up to and including 105 years.
Mortality assumptions in BEFINN and BEFREG
Projected mortality probabilities are used as assumptions for
mortality in BEFINN and BEFREG. In BEFINN, the mortality
probabilities are applied by sex, age in years and calendar
year in four alternatives: high (H), medium (M), low (L) and
constant (K) life expectancy. The same mortality is assumed
for immigrants as for others, since the disparities on average are below 10 per cent (Syse et al. 2016). In BEFREG, we
factor in existing regional differences in mortality. We let
the mortality level vary between the counties and between
Oslo’s 15 largest districts. In total, this gives 33 mortality regions, where the mortality rate is allowed to vary by region,
age in years and sex. In order to determine the mortality
output level in the 33 mortality regions, age-specific mortality probabilities are calculated as an average of the last ten
years in each mortality region. This is a weighted average
where the last year with available data counts the most.
Once we have ascertained the output level in each region,
we add assumptions about future mortality at a national
Statistics Norway
Translation from Economic Survey 21 June 2016
level. The national assumptions are the same in BEFINN and
BEFREG. The future regional mortality trend is determined by
adjusting the output level in the 33 mortality regions proportionally to the future national development in mortality. The
regional mortality disparities are thus factored in since the
output level by age in years and sex is different in each mortality region. Thus, we assume that the disparities between
the mortality regions remain constant throughout the entire
projection period.
In the population projections, we calculate the future population by sex and age in years in 108 prognosis regions.
Prognosis regions that belong to the same mortality region
will therefore have the same age-specific mortality probabilities. We only calculate the number of deaths at county level
and for prognosis regions, not by municipality.
Mortality assumptions for 2016
This year’s projections are based on developments in mortality during the period 1990-2015. We assume that mortality
will continue to decline. In our main alternative, life expectancy at birth for men will rise from around 80 years in 2015
to 87.2 and 91.6 years respectively in 2060 and 2100. This
represents an increase of about seven years up to 2060,
and eleven to twelve for the entire projection period. For
women, we have assumed an increase from around 84 years
to 89.2 and 92.5 years for the same period, which is an increase of five and just over eight years respectively.
Statistics Norway
Population projections 2016-2100: Main results
In the low alternative, men’s life expectancy showed weak
growth: it is assumed to increase to 83.3 years in 2060 and
86.3 years in 2100. For women, the increase is even smaller,
and the corresponding estimates are assumed to be 86.0
years in 2060 and 88.0 years in 2100. In stark contrast, our
high alternatives show strong growth in life expectancy:
men’s life expectancy will increase to 90.3 years in 2060
and reach as much as 95.2 years in 2100, representing an
increase of ten and fifteen years in total. Women’s life expectancy will also see a strong increase, although somewhat
less than for men, to 91.9 years in 2060 and 95.7 years
in 2100. The high and low alternatives in a particular year
coincide with the limits of an 80 per cent prediction interval.
From 2015 to 2016, it is assumed that life expectancy will
only rise by about 0.3 years for both sexes combined. This is
roughly equivalent to the increase we have seen in the last
10-15 years. From 2015 to 2016, the increase is assumed
to be equal for women and men, while in the longer term it
is assumed that life expectancy for men will increase faster
than for women. Thus, it is assumed that the disparity in
men and women’s life expectancy will decline further in all
age groups. If our assumptions are correct, the gender disparity in pensioners’ remaining life expectancy will steadily
narrow.
13
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
INTERNAL MIGRATION
How is migration calculated in the population
projections?
BEFREG is a projection model that calculates the population
size and its regional distribution by sex and age in years.
Figures are published for the counties, municipalities and
districts in Oslo. Internal migration and immigration/ emigration have a large impact on population trends. The internal
migration is projected in several stages. Based on observed
migration, out-migration probabilities are calculated from
each prognosis region and a migration matrix across the
regions for groups by age and sex. For each projection year,
the number of out-migrations is calculated from each region, and these are distributed into in-migrations using the
migration matrix. The model also factors in migration within
regions when the population is broken down at municipal
level.
The migration assumptions are based on migration trends
from the last decade continuing. Future migration between
regions is calculated for persons aged 0-69 years, while migration within the regions is calculated for persons up to the
age of 49. In addition to migration between different prognosis regions in Norway, BEFREG also calculates migration
between the prognosis regions and abroad. These figures
are adjusted to align them with the national figures for immigration and emigration in BEFINN.
When making assumptions about future migration, out-migration from each prognosis region is calculated first, using
out-migration probabilities. These probabilities are calculated
for each sex by age in years (0-69 years), and are based on
observed out-migration from each prognosis region in the
past ten years. Since migration can entail moving to other
countries as well as other parts of Norway, separate probabilities are calculated for emigration and internal out-migration from each prognosis region.
Emigration probabilities are calculated based on observed
emigration over the last ten years. The probability is calculated from all prognosis regions for sex and age by years up
to 70. In order for the results of emigration probabilities to
match the national emigration figures from BEFINN, an index
is calculated for each year that the emigration probabilities
for each prognosis region are aligned with. This depends
on the immigration alternative, since high immigration, for
example, entails higher emigration in subsequent years.
Internal out-migration probabilities are calculated based on
registered internal migration over the last ten years. In order
to ensure a smooth transition from the migration probabilities’ last observed year to the migration probabilities in the
long term (and which are based on observed figures from
the last ten years), the long-term probabilities are gradually
phased in during the first four projection years.
With regard to immigration to the prognosis regions from
abroad, immigrant figures by sex and age are taken from
BEFINN’s national figures. This is done for each year throughout the projection period and for all immigration alternatives. Using the migration matrix, immigrants are distributed
into the prognosis regions according to the percentage of
the immigration over the last decade to the various regions,
based on groups by sex and age.
14
Migration matrix
After we have projected the number of persons who outmigrated from the prognosis regions and immigrants, these
must be distributed as migrants to the prognosis regions.
This is done using a migration matrix. The migration matrix
applies separate percentages for migration from different
parts of the country and to each prognosis region based
on age and sex. In order to reduce the number of migration flows and ensure that they have a robust size, we have
merged the prognosis regions into 34 large out-migration
areas, based on part of the country and centrality.
In the migration matrix, percentages are calculated for how
much of the migration from each of the out-migration areas
(and abroad) should go to each prognosis region. These
are based on observed migration in the last ten years, for
20 groups of migrants by age and sex. Since people are
more likely to migrate in their 20s, there are relatively many
different age groups in this age range. However, the most
elderly, who move relatively seldom, are made up of just a
few groups.
Breakdown at municipality level
When BEFREG has projected the population in each prognosis region, the population by sex and age in years is distributed into the municipalities within the region. This breakdown
takes into account migration between the municipalities
within the same prognosis region of people aged 1-49 years.
For this age group, growth rates are calculated for each municipality based mainly on migration within the region over
the past ten years. In order to ensure that the growth rates
give a population figure for the municipalities that adds up
to the projected population for the prognosis region, a correction factor is used to adjust the growth rates. In addition,
a moderating factor is added, which ensures a downward
trend in growth rates, such that disparities in growth between municipalities within a region are reduced over time.
This is to limit the effects of temporary fluctuations in the
municipal population on the population distribution within
the region over time. This adjustment does not affect the cities, which are separate prognosis regions.
Migration assumptions for 2016
The population projection for 2016-2040 uses the migration
over the years 2006-2015 to calculate the migration rates.
The tendency to move has increased in this period, since
the observed mobility between the municipalities is greater.
The trend over the period 2006-2015 is generally positive,
except during the financial crisis in 2008 and 2009 when
the migration rate was somewhat lower. Migration patterns
are strongly correlated to age and are often viewed in the
context of life phases. Migration is by far the highest for the
age group 20-29 years, with an average of 135 migrations
per 1 000 persons in the period 2006-2015, and the second
highest for those aged 30-39 years, with a corresponding
figure of 60. For young adults, it is natural to view this in the
context of studies and starting a career. For those slightly
older, migration can be associated with forming a family
and income growth, and thereby other preferences, needs
and opportunities with regard to housing and residence.
The tendency to migrate declines steadily with age after 40,
and the over 80s are the least mobile, with fewer than 5 per
thousand migrating.
Statistics Norway
Translation from Economic Survey 21 June 2016
Internal migration and immigration lead to centralisation. A
secondary effect is that internal migrants and immigrants are
young and of childbearing age, which contributes to higher
fertility and lower mortality. Every year in the period 20062015 saw a positive internal net in-migration of 5 000-9 000
to the most central municipalities (measured using Statistics
Norway’s centrality distribution). Municipalities that are not
central, however, have an aggregate internal net out-migration, and the net out-migration generally rises with the declining degree of centrality. Net in-migration is over 25 000
Statistics Norway
Population projections 2016-2100: Main results
for the central municipalities over much of the period and
never falls below 15 000. For the other municipalities, net
in-migration is almost 5 000. This means that much of the
internal net out-migration in the municipalities that are not
central is offset by immigrants. These municipalities therefore have a weak population growth overall. There is some
heterogeneity in the growth in the central municipalities. In
terms of number of inhabitants, the greatest growth is seen
in the cities’ peripheral municipalities. All of these characteristics of migration patterns are also projected by the model.
15
Population projections 2016-2100: Main results
Translation from Economic Survey 21 June 2016
MIGRATION
How is immigration and emigration calculated in
the population projections?
In the population projections, immigration and emigration
are calculated separately. Thus, we draw up assumptions
for gross immigration and gross emigration. The world is divided into three country groups for both types of migration:
1. West Europe, USA, Canada, Australia and New Zealand
2. New, eastern EU countries
3. Rest of the world
Immigration and emigration among persons with a background from Norway are also calculated. Net migration is
calculated by subtracting the annual emigration from the
annual immigration. The projections of immigration and
emigration are also used to estimate the number of immigrants and Norwegian-born children to two immigrants who
will live in Norway in the future.
Projecting future immigration
In order to project future immigration to Norway, a separate
econometric model is used. A fuller description of this is
given in Cappelen et al. 2015. In this model, immigration to
Norway is influenced by four specific factors: disparities in
income and unemployment between Norway and the three
country groups; population growth in the country groups;
and how many from the three country groups already live in
Norway. We use empirical data to estimate the parameters
in the model – i.e. to quantify the correlation between the
various factors and immigration. These estimates are used
in conjunction with prognoses for future income disparities,
unemployment and population trends in order to calculate future immigration from each of the country groups.
The high and low alternatives for immigration differ from
the medium alternative in that they are based on different
alternatives for future Norwegian and international income
growth, and that they use the UN’s high and low alternatives for population growth in the world. It is also possible
to raise or lower the immigration trajectories emanating
from the econometric model, based on a discretionary assessment of the immigration situation. This was done in this
year’s projections (see below). Immigration by people with
a background from Norway is projected as a weak linear increase of last year’s immigration level. When the figures for
future immigration to Norway from each country group are
calculated, these are distributed by age and sex (and period
16
of residence) based on the breakdown of immigration to
Norway over the last ten years.
Projection of future emigration
Emigration is determined by emigration probabilities. These
probabilities are based on observed figures for emigration
over the last decade, and vary by age and sex. They also
vary according to whether they are immigrants, Norwegianborn to two immigrants or are in the rest of the population.
For immigrants and their children, we have various emigration probabilities by country group and (for immigrants) by
period of residence. Immigrants from country groups 1 and
2 with a short period of residence have a particularly high
probability of emigration.
Net immigration and number of immigrants in
Norway
Once we have made assumptions about immigration and
emigration, we can easily calculate the projected net migration. By combining this with the assumptions about mortality, we calculate the number of immigrants who will remain
in the country in the years ahead. We also calculate how
many of the future inhabitants will be Norwegian-born to
two immigrant parents. This requires assumptions about the
proportion of immigrant women’s children whose father is
also an immigrant, in addition to assumptions on future fertility among immigrant women.
Migration assumptions for 2016
The results of the econometric model’s main alternative
show a clear decline in immigration in the coming years.
This is related to the expected high unemployment in
Norway. The decline is particularly strong for immigration
from country group 2 – Eastern European EU countries. For
country groups 1 and 3, immigration increases again after
the first few years, and country group 3 shows weak growth
throughout most of the century. For country group 3, we
have this time also included a discretionary addition in immigration in the coming years, due to the asylum situation
in Europe and Norway. Emigration from Norway will increase
somewhat throughout the century, in line with the growing number of immigrants in Norway. Net migration is set
to stabilise at between 25 000 and 30 000 annually in the
long term. The number of immigrants living in Norway will
increase from around 700 000 today to 1.7 million in 2060,
according to the main alternative (MMMM).
Statistics Norway