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): 4.56 in 1950 → 2.57 in 2025 (−44%). Low: 1.90 in 2000; +35% since then. The trend broke around 1991 and 1998: −0.05 → −0.11 → +0.04 a year.
Births: 239k in 1950 → 335k in 2025 (+40%). Peak: 460k in 2021; the latest value is 27% lower. The trend broke around 1988 and 1998: +4.54k → −16.8k → +6.73k a year.
Population: 6.79M in 1950 → 20.3M in 2023 (×3). The trend broke around 1990 and 2002: +270k → −204k → +234k a year.
Internet: 0% in 1990 → 93.4% in 2024 (+93 pp). Thresholds: above 10% since 2008, above 50% since 2011, above 90% since 2021. Fastest growth in 2007–2012: 4% → 61.9%.
Urban share: 44.7% in 1960 → 62.4% in 2025 (+18 pp). Threshold: above 50% since 1969. The trend broke around 1988 and 2011: +0.43 → −0.17 → +0.65 a year.
GDP per person (PPP): 16,838 PPP dollars in 1990 → 37,851 PPP dollars in 2025 (+125%). Low: 10,600 PPP dollars in 1995; ×3.6 since then. The trend broke around 1997 and 2011: −894 → +1,341 → +552 a year.
GDP growth: on average −3.9% in the 1990s, 8.6% in the 2000s, 4.4% in the 2010s, 3.0% in the 2020s. Lowest: −12.6% in 1994; highest: 13.5% in 2001.
Inflation: on average 473.2% in the 1990s, 9.2% in the 2000s, 7.3% in the 2010s, 10.6% in the 2020s. Lowest: 5.1% in 2012; highest: 1,662% in 1993.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1987–1997: 3.12 → 1.97. Over the same years: births 446k → 264k; population 16.5M → 16M; internet 0.1% (1997); urban share 57.1% → 56.5%; GDP per person (PPP) 11,299 PPP dollars (1997); GDP growth 1.7% (1997); inflation 17.4% (1997).
Over the last 10 years (2015–2025): fertility (TFR) 2.76 → 2.57; births 407k → 335k; population 18.1M (2015); internet 70.8% → 93.4%; urban share 56.1% → 62.4%; GDP per person (PPP) 30,894 PPP dollars → 37,851 PPP dollars; GDP growth 1% → 5%; inflation 6.8% → 8.7%.
How the indicators relate
Fertility (TFR) and internet (1990–2024, 32 years): levels are strongly related, in the same direction (r = 0.86); year-to-year changes show no reliable link (r = 0.14). This looks like a shared trend: both change over time, but not in step from year to year.
Fertility (TFR) and urban share (1960–2025, 66 years): levels are noticeably related, in opposite directions (r = −0.67); year-to-year changes show no reliable link (r = 0.09).
Fertility (TFR) and GDP per person (PPP) (1990–2025, 36 years): levels are strongly related, in the same direction (r = 0.79); year-to-year changes show no reliable link (r = 0.17). 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 +37%.
The UN 2019 projection expected this level (2.57) already around 2024: reality is 1 year behind it.
The UN 2022 projection expected today's level (2.57, 2025) only around 2043: reality is 18 years ahead of it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 2.39 (−7% vs 2025), 2100 — 1.94 (−25% vs 2025); low variant for 2100: 1.44.
Births: past UN projections. The outcome was below the projection in 1 of 12 revisions (1998–2022) and above in 11; median gap +47%.
National statistics for 2025: 335k, 15% below the UN 2024 medium variant (395k).
Births: UN 2024 projection (medium): 2050 — 450k (+34% vs 2025), 2100 — 384k (+15% vs 2025); low variant for 2100: 176k.
Population: past UN projections. The outcome was below the projection in 0 of 12 revisions (1998–2022) and above in 12; median gap +15%.
The UN 2010 projection expected today's level (20.3M, 2023) only around 2043: reality is 20 years ahead of it.
The UN 2022 projection expected today's level (20.3M, 2023) only around 2027: reality is 4 years ahead of it.
Population: UN 2024 projection (medium): 2050 — 26.5M (+31% vs 2023), 2100 — 33.7M (+66% vs 2023); low variant for 2100: 23.7M.
GDP growth: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 0.5 pp below the forecast; below it in 53% of cases; typical error ±2.4 pp. The biggest miss was for 2020: IMF, October 2019 expected 3.9%, the outcome was −2.6%.
GDP growth: latest IMF forecast (IMF, April 2026): 2025 — 6.5%, 2027 — 4.4%, 2031 — 3.6%.
Inflation: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 1.7 pp above the forecast; below it in 44% of cases; typical error ±2.8 pp. The biggest miss was for 2008: IMF, April 2007 expected 6.8%, the outcome was 17.2%.
Inflation: latest IMF forecast (IMF, April 2026): 2025 — 11.4%, 2027 — 10.1%, 2031 — 5%.
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
17.6M
20.3M
+15.7%
UN 2000
2023
23 years
16.1M
20.3M
+26.3%
UN 2002
2023
21 years
15.4M
20.3M
+31.9%
UN 2004
2023
19 years
14.8M
20.3M
+37.1%
UN 2006
2023
17 years
16.9M
20.3M
+20.3%
UN 2008
2023
15 years
16.9M
20.3M
+20.2%
UN 2010
2023
13 years
18.1M
20.3M
+12.4%
UN 2012
2023
11 years
17.9M
20.3M
+13.6%
UN 2015
2023
8 years
19.1M
20.3M
+6.3%
UN 2017
2023
6 years
19.3M
20.3M
+5.4%
UN 2019
2023
4 years
19.4M
20.3M
+4.8%
UN 2022
2023
1 year
19.6M
20.3M
+3.7%
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
261k
408k
+56.5%
UN 2000
2020–2025
22 years
218k
408k
+87.3%
UN 2002
2020–2025
20 years
199k
408k
+104.5%
UN 2004
2020–2025
18 years
201k
408k
+102.5%
UN 2006
2020–2025
16 years
242k
408k
+68.4%
UN 2008
2020–2025
14 years
247k
408k
+65%
UN 2010
2020–2025
12 years
305k
408k
+33.9%
UN 2012
2020–2025
10 years
297k
408k
+37.2%
UN 2015
2020–2025
8 years
331k
408k
+23.4%
UN 2017
2020–2025
6 years
333k
408k
+22.7%
UN 2019
2020–2025
4 years
344k
408k
+18.6%
UN 2022
2025
3 years
385k
335k
−13%
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
2.10
3.01
+43.2%
UN 2000
2020–2025
22 years
1.90
3.01
+58.2%
UN 2002
2020–2025
20 years
1.85
3.01
+62.5%
UN 2004
2020–2025
18 years
1.85
3.01
+62.5%
UN 2006
2020–2025
16 years
2.03
3.01
+48.4%
UN 2008
2020–2025
14 years
2.03
3.01
+48.4%
UN 2010
2020–2025
12 years
2.39
3.01
+26.1%
UN 2012
2020–2025
10 years
2.29
3.01
+31.6%
UN 2015
2020–2025
8 years
2.44
3.01
+23.4%
UN 2017
2020–2025
6 years
2.46
3.01
+22.3%
UN 2019
2020–2025
4 years
2.62
3.01
+14.7%
UN 2022
2025
3 years
2.98
2.57
−13.6%
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
34
−0.5 pp
2.4 pp
53%
Inflation
34
+1.7 pp
2.8 pp
44%
Unemployment rate
27
−0.3 pp
0.3 pp
93%
Government gross debt
26
+0.2 pp
3.1 pp
50%
All indicators
Demography
Population
20.3M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.