Computed with the same code as the observations under the main chart and in the API (get_insights). Moving together in time does not prove a cause.
How the indicators changed
Fertility (TFR): 2.48 in 1950 → 1.63 in 2025 (−34%). Low: 1.11 in 1997; +46% since then. Threshold: below 2.1 since 1980. The trend broke around 1988 and 1996: −0.01 → −0.1 → +0.02 a year.
Births: 156k in 1950 → 50.2k in 2025 (−68%). The trend broke around 1986 and 1995: −0.66k → −5.67k → −0.47k a year.
Population: 7.25M in 1950 → 6.8M in 2023 (−6%). Peak: 8.99M in 1988; the latest value is 24% lower. The trend broke around 1972 and 1985: +63.3k → +28.5k → −61k a year.
Internet: 0% in 1990 → 82.4% in 2024 (+82 pp). Thresholds: above 10% since 2003, above 50% since 2012. Fastest growth in 2003–2008: 12% → 39.7%.
Urban share: 37.1% in 1960 → 74.2% in 2025 (+37 pp). Threshold: above 50% since 1969. The trend broke around 1972 and 1984: +1.6 → +0.82 → +0.23 a year.
GDP per person (PPP): 14,954 PPP dollars in 1990 → 35,326 PPP dollars in 2025 (+136%). Low: 11,954 PPP dollars in 1999; ×3 since then. The trend broke around 1999: direction reversed (−171 → +794 a year).
GDP growth: on average 3.7% in the 1980s, −5.9% in the 1990s, 4.9% in the 2000s, 2.0% in the 2010s, 2.8% in the 2020s. Lowest: −14.1% in 1997; highest: 7.8% in 2021.
Inflation: on average 2.6% in the 1980s, 187.6% in the 1990s, 6.7% in the 2000s, 1.1% in the 2010s, 5.3% in the 2020s. Lowest: −1.6% in 2014; highest: 1,061% in 1997.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1987–1997: 1.96 → 1.11. Over the same years: births 117k → 63.8k; population 8.98M → 8.22M; internet 1.2% (1997); urban share 66% → 67.7%; GDP per person (PPP) 12,419 PPP dollars (1997); GDP growth 4.7% → −14.1%; inflation 2.7% → 1,061%.
Over the last 10 years (2015–2025): fertility (TFR) 1.53 → 1.63; births 65.9k → 50.2k; population 7.18M (2015); internet 56.7% → 82.4%; urban share 73.1% → 74.2%; GDP per person (PPP) 24,563 PPP dollars → 35,326 PPP dollars; GDP growth 3.4% → 3.1%; inflation −1.1% → 3.5%.
How the indicators relate
Fertility (TFR) and internet (1990–2024, 33 years): levels are strongly related, in the same direction (r = 0.76); year-to-year changes are related too (r = 0.56). Changes line up from year to year too, which is more than a shared trend.
Fertility (TFR) and urban share (1960–2025, 66 years): levels are strongly related, in opposite directions (r = −0.74); year-to-year changes show no reliable link (r = 0.09). This looks like a shared trend: both change over time, but not in step from year to year.
Fertility (TFR) and GDP per person (PPP) (1990–2025, 36 years): levels are strongly related, in the same direction (r = 0.71); year-to-year changes show no reliable link (r = 0.32). This looks like a shared trend: both change over time, but not in step from year to year.
Forecasts vs actual
Fertility (TFR): past UN projections. The outcome was below the projection in 1 of 12 revisions (1998–2022) and above in 11; median gap +4.8%.
The UN 1998 projection expected today's level (1.63, 2025) only around 2036: reality is 11 years ahead of it.
The UN 2010 projection expected this level (1.63) already around 2018: reality is 7 years behind it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 1.70 (+4% vs 2025), 2100 — 1.68 (+3% vs 2025); low variant for 2100: 1.18.
Births: past UN projections. The outcome was below the projection in 6 of 12 revisions (1998–2022) and above in 6; median gap 0%.
The UN 1998 projection expected today's level (50.2k, 2025) only around 2036: reality is 11 years ahead of it.
The UN 2022 projection expected today's level (50.2k, 2025) only around 2030: reality is 5 years ahead of it.
National statistics for 2025: 50.2k, 17% below the UN 2024 medium variant (60.4k) and below its 95% interval.
Births: UN 2024 projection (medium): 2050 — 47.8k (−5% vs 2025), 2100 — 28.9k (−42% vs 2025); low variant for 2100: 9.23k.
Population: past UN projections. The outcome was below the projection in 3 of 12 revisions (1998–2022) and above in 9; median gap +1.2%.
The UN 1998 projection expected today's level (6.8M, 2023) only around 2030: reality is 7 years ahead of it.
The UN 2019 projection expected this level (6.8M) already around 2022: reality is 1 year behind it.
Population: UN 2024 projection (medium): 2050 — 5.4M (−21% vs 2023), 2100 — 3.53M (−48% vs 2023); low variant for 2100: 2.26M.
GDP growth: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 0.7 pp below the forecast; below it in 50% of cases; typical error ±1.8 pp. The biggest miss was for 2009: IMF, April 2008 expected 4.8%, the outcome was −3.3%.
GDP growth: latest IMF forecast (IMF, April 2026): 2026 — 2.8%, 2028 — 2.8%, 2031 — 2.6%.
Inflation: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 0.7 pp above the forecast; below it in 44% of cases; typical error ±2.4 pp. The biggest miss was for 2022: IMF, October 2021 expected 1.9%, the outcome was 13%.
Inflation: latest IMF forecast (IMF, April 2026): 2026 — 3.8%, 2028 — 3.4%, 2031 — 2.2%.
UN projections vs actual
Solid line: actual data, UN WPP 2024 estimates to 2023, then national statistics where comparable with the UN. Dashed: medium variants of past UN revisions. The table shows what each revision expected for the latest year (or five-year period) with actual data.
Population
persons, 1 July
Actual
UN 1998
UN 2000
UN 2002
UN 2004
UN 2006
UN 2008
UN 2010
UN 2012
UN 2015
UN 2017
UN 2019
UN 2022
UN 2024, medium
Release
Target period
Horizon
Expected
Actual
Actual vs expected
UN 1998
2023
25 years
7.13M
6.8M
−4.7%
UN 2000
2023
23 years
6.26M
6.8M
+8.5%
UN 2002
2023
21 years
6.72M
6.8M
+1.2%
UN 2004
2023
19 years
6.68M
6.8M
+1.8%
UN 2006
2023
17 years
6.68M
6.8M
+1.7%
UN 2008
2023
15 years
6.86M
6.8M
−0.9%
UN 2010
2023
13 years
6.84M
6.8M
−0.7%
UN 2012
2023
11 years
6.65M
6.8M
+2.2%
UN 2015
2023
8 years
6.72M
6.8M
+1.2%
UN 2017
2023
6 years
6.79M
6.8M
0%
UN 2019
2023
4 years
6.79M
6.8M
+0.1%
UN 2022
2023
1 year
6.69M
6.8M
+1.6%
Births
births per year
Actual
UN 1998
UN 2000
UN 2002
UN 2004
UN 2006
UN 2008
UN 2010
UN 2012
UN 2015
UN 2017
UN 2019
UN 2022
UN 2024, medium
Release
Target period
Horizon
Expected
Actual
Actual vs expected
UN 1998
2020–2025
24 years
54.1k
58.7k
+8.6%
UN 2000
2020–2025
22 years
48.6k
58.7k
+20.9%
UN 2002
2020–2025
20 years
55.3k
58.7k
+6.2%
UN 2004
2020–2025
18 years
50.5k
58.7k
+16.4%
UN 2006
2020–2025
16 years
50.4k
58.7k
+16.7%
UN 2008
2020–2025
14 years
58.5k
58.7k
+0.5%
UN 2010
2020–2025
12 years
61.6k
58.7k
−4.6%
UN 2012
2020–2025
10 years
59.1k
58.7k
−0.6%
UN 2015
2020–2025
8 years
61.5k
58.7k
−4.5%
UN 2017
2020–2025
6 years
61.3k
58.7k
−4.2%
UN 2019
2020–2025
4 years
59k
58.7k
−0.4%
UN 2022
2025
3 years
53.5k
50.2k
−6.1%
Total fertility rate
children per woman
Actual
UN 1998
UN 2000
UN 2002
UN 2004
UN 2006
UN 2008
UN 2010
UN 2012
UN 2015
UN 2017
UN 2019
UN 2022
UN 2024, medium
Release
Target period
Horizon
Expected
Actual
Actual vs expected
UN 1998
2020–2025
24 years
1.48
1.68
+14.1%
UN 2000
2020–2025
22 years
1.43
1.68
+17.8%
UN 2002
2020–2025
20 years
1.54
1.68
+9.3%
UN 2004
2020–2025
18 years
1.41
1.68
+19.8%
UN 2006
2020–2025
16 years
1.44
1.68
+17.3%
UN 2008
2020–2025
14 years
1.60
1.68
+5.3%
UN 2010
2020–2025
12 years
1.69
1.68
−0.2%
UN 2012
2020–2025
10 years
1.67
1.68
+0.5%
UN 2015
2020–2025
8 years
1.66
1.68
+1.5%
UN 2017
2020–2025
6 years
1.64
1.68
+2.5%
UN 2019
2020–2025
4 years
1.61
1.68
+4.4%
UN 2022
2025
3 years
1.60
1.63
+1.8%
IMF forecasts vs actual
Solid line: actual values from the latest IMF edition (data get revised, so we use the newest). Dashed: April editions, current year and five years ahead. The table covers next-year forecasts from all editions: mean error shows bias, mean absolute error shows accuracy.
Real GDP growth
% per year
Actual (IMF)
WEO, April editions
Indicator
Forecasts
Mean error
Mean absolute error
Actual below forecast
Real GDP growth
36
−0.7 pp
1.8 pp
50%
Inflation
36
+0.7 pp
2.4 pp
44%
Unemployment rate
29
−0.1 pp
1.3 pp
62%
Government gross debt
28
−0.9 pp
3.4 pp
57%
All indicators
Demography
Population
6.8M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.