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): 7.06 in 1950 → 2.75 in 2023 (−61%). The trend broke around 1985 and 1996: −0.06 → −0.14 → −0.03 a year.
Births: 1.16M in 1950 → 1.97M in 2024 (+70%). Peak: 2.81M in 2015; the latest value is 30% lower. The trend broke around 2006 and 2015: +18.9k → +68.9k → −74.9k a year.
Population: 21.1M in 1950 → 115M in 2023 (×5.4). The trend broke around 1978: change sped up (+733k → +1.48M a year).
Internet: 0% in 1990 → 74.6% in 2024 (+75 pp). Thresholds: above 10% since 2004, above 50% since 2019. Fastest growth in 2015–2020: 37.8% → 71.9%.
Urban share: 37.8% in 1960 → 42.9% in 2025 (+5.1 pp). The trend broke around 1966 and 1975: +0.58 → +0.28 → −0.03 a year.
GDP per person (PPP): 8,007 PPP dollars in 1990 → 17,265 PPP dollars in 2025 (+116%).
GDP growth: on average 5.3% in the 1980s, 4.1% in the 1990s, 5.0% in the 2000s, 3.9% in the 2010s, 3.9% in the 2020s. Lowest: 0.3% in 1992; highest: 8.9% in 1983.
Inflation: on average 17.5% in the 1980s, 10.9% in the 1990s, 7.1% in the 2000s, 12.8% in the 2010s, 15.3% in the 2020s. Lowest: 2.3% in 2002; highest: 33.3% in 2024.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1985–1995: 5.12 → 3.76. Over the same years: births 1.94M → 1.88M; population 50.7M → 65.7M; internet 0% (1995); urban share 44% → 42.7%; GDP per person (PPP) 8,424 PPP dollars (1995); GDP growth 7.4% → 4.5%; inflation 12.1% → 9.4%.
Over the last 10 years (2013–2023): fertility (TFR) 3.49 → 2.75; births 2.73M → 2.41M; population 95.3M → 115M; internet 29.4% → 74%; urban share 42.8% → 42.7%; GDP per person (PPP) 13,058 PPP dollars → 16,691 PPP dollars; GDP growth 3.3% → 3.8%; inflation 6.9% → 24.4%.
How the indicators relate
Fertility (TFR) and internet (1990–2023, 32 years): levels are strongly related, in opposite directions (r = −0.79); year-to-year changes show no reliable link (r = −0.06). This looks like a shared trend: both change over time, but not in step from year to year.
Fertility (TFR) and urban share (1960–2023, 64 years): levels are barely related (r = −0.34); year-to-year changes show no reliable link (r = 0.25).
Fertility (TFR) and GDP per person (PPP) (1990–2023, 34 years): levels are strongly related, in opposite directions (r = −0.86); year-to-year changes show no reliable link (r = −0.11). 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 3 of 11 revisions (1998–2022) and above in 8; median gap +25%.
The UN 2002 projection expected this level (2.75) already around 2012: reality is 11 years behind it.
The UN 2019 projection expected today's level (2.75, 2023) only around 2036: reality is 13 years ahead of it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 2.21 (−20% vs 2023), 2100 — 1.84 (−33% vs 2023); low variant for 2100: 1.34.
Births: past UN projections. The outcome was below the projection in 1 of 11 revisions (1998–2022) and above in 10; median gap +35%.
National statistics for 2024: 1.97M, 19% below the UN 2024 medium variant (2.44M) and below its 95% interval.
Births: UN 2024 projection (medium): 2050 — 2.58M (+31% vs 2024), 2100 — 2.2M (+12% vs 2024); low variant for 2100: 943k.
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 1998 projection did not expect today's level (115M, 2023) before its horizon ended (2030).
The UN 2022 projection expected today's level (115M, 2023) only around 2025: reality is 2 years ahead of it.
Population: UN 2024 projection (medium): 2050 — 162M (+41% vs 2023), 2100 — 202M (+76% vs 2023); low variant for 2100: 138M.
GDP growth: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 0.4 pp below the forecast; below it in 44% of cases; typical error ±1 pp. The biggest miss was for 2011: IMF, April 2010 expected 5.5%, the outcome was 1.8%.
GDP growth: latest IMF forecast (IMF, April 2026): 2025 — 4.4%, 2027 — 4.8%, 2031 — 4.8%.
Inflation: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 1.6 pp above the forecast; below it in 44% of cases; typical error ±3.9 pp. The biggest miss was for 2024: IMF, April 2023 expected 18%, the outcome was 33.3%.
Inflation: latest IMF forecast (IMF, April 2026): 2025 — 20.4%, 2027 — 11.1%, 2031 — 5.3%.
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
93.6M
115M
+22.4%
UN 2000
2023
23 years
92.8M
115M
+23.5%
UN 2002
2023
21 years
101M
115M
+13.8%
UN 2004
2023
19 years
98.6M
115M
+16.1%
UN 2006
2023
17 years
96.2M
115M
+19.1%
UN 2008
2023
15 years
102M
115M
+11.8%
UN 2010
2023
13 years
98.5M
115M
+16.2%
UN 2012
2023
11 years
94.7M
115M
+21%
UN 2015
2023
8 years
106M
115M
+8.4%
UN 2017
2023
6 years
108M
115M
+5.9%
UN 2019
2023
4 years
108M
115M
+6%
UN 2022
2023
1 year
113M
115M
+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
2015–2020
20 years
1.59M
2.58M
+62.6%
UN 2000
2015–2020
18 years
1.58M
2.58M
+63.2%
UN 2002
2015–2020
16 years
1.92M
2.58M
+34.6%
UN 2004
2015–2020
14 years
1.91M
2.58M
+35.4%
UN 2006
2015–2020
12 years
1.84M
2.58M
+40.5%
UN 2008
2015–2020
10 years
1.99M
2.58M
+29.8%
UN 2010
2015–2020
8 years
1.85M
2.58M
+39.5%
UN 2012
2015–2020
6 years
1.88M
2.58M
+37.3%
UN 2015
2015–2020
2 years
2.41M
2.58M
+7%
UN 2017
2015–2020
0 years
2.46M
2.58M
+4.9%
UN 2022
2024
2 years
2.45M
1.97M
−19.6%
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
2015–2020
20 years
2.10
3.15
+49.8%
UN 2000
2015–2020
18 years
2.10
3.15
+49.8%
UN 2002
2015–2020
16 years
2.50
3.15
+25.6%
UN 2004
2015–2020
14 years
2.57
3.15
+22.5%
UN 2006
2015–2020
12 years
2.51
3.15
+25.5%
UN 2008
2015–2020
10 years
2.51
3.15
+25.5%
UN 2010
2015–2020
8 years
2.46
3.15
+27.9%
UN 2012
2015–2020
6 years
2.62
3.15
+19.9%
UN 2015
2015–2020
2 years
3.16
3.15
−0.5%
UN 2017
2015–2020
0 years
3.16
3.15
−0.3%
UN 2022
2023
1 year
2.85
2.75
−3.3%
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
−0.4 pp
1 pp
44%
Inflation
34
+1.6 pp
3.9 pp
44%
Unemployment rate
27
−0.3 pp
1 pp
63%
Government gross debt
26
−0.7 pp
4.5 pp
54%
All indicators
Demography
Population
115M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.