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): 3.08 in 1950 → 1.39 in 2024 (−55%). Peak: 3.59 in 1967; the latest value is 61% lower. Thresholds: below 2.1 since 1990, below 1.5 since 2024. The trend broke around 1988 and 1994: −0.01 → −0.17 → +0.02 a year.
Births: 417k in 1950 → 134k in 2025 (−68%). Peak: 511k in 1967; the latest value is 74% lower. The trend broke around 1963 and 1969: −13k → +21.5k → −5.12k a year.
Population: 16.4M in 1950 → 19.1M in 2023 (+17%). Peak: 22.9M in 1991; the latest value is 17% lower. The trend broke around 1982 and 1992: +189k → +59.8k → −133k a year.
Internet: 0% in 1990 → 91.3% in 2024 (+91 pp). Thresholds: above 10% since 2004, above 50% since 2014, above 90% since 2024. Fastest growth in 2016–2021: 59.5% → 83.6%.
Urban share: 34.4% in 1960 → 52.2% in 2025 (+18 pp). Threshold: above 50% since 1981. The trend broke around 1988: direction reversed (+0.56 → −0.04 a year).
GDP per person (PPP): 16,317 PPP dollars in 1990 → 40,846 PPP dollars in 2025 (×2.5). Low: 13,195 PPP dollars in 1992; ×3.1 since then. The trend broke around 1999: direction reversed (−37 → +1,036 a year).
GDP growth: on average 1.6% in the 1980s, −2.3% in the 1990s, 5.0% in the 2000s, 3.0% in the 2010s, 1.7% in the 2020s. Lowest: −12.9% in 1991; highest: 10.4% in 2004.
Inflation: on average 3.0% in the 1980s, 122.3% in the 1990s, 16.4% in the 2000s, 2.8% in the 2010s, 7.5% in the 2020s. Lowest: −1.6% in 2016; highest: 256.1% in 1993.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1955–1965: 3.01 → 1.90. Over the same years: births 442k → 270k; population 17.5M → 18.7M; urban share 37.7% (1965); no data for the others in those years.
Over the last 10 years (2014–2024): fertility (TFR) 1.56 → 1.39; births 201k → 144k; population 20M → 19.1M; internet 54.1% → 91.3%; urban share 53.8% → 52.2%; GDP per person (PPP) 28,156 PPP dollars → 40,504 PPP dollars; GDP growth 4.1% → 0.9%; inflation 1.1% → 5.6%.
How the indicators relate
Fertility (TFR) and internet (1990–2024, 33 years): levels are strongly related, in the same direction (r = 0.70); year-to-year changes are weakly related (r = 0.49).
Fertility (TFR) and urban share (1960–2024, 65 years): levels are noticeably related, in opposite directions (r = −0.59); year-to-year changes show no reliable link (r = 0.03).
Fertility (TFR) and GDP per person (PPP) (1990–2024, 35 years): levels are noticeably related, in the same direction (r = 0.67); year-to-year changes are weakly related (r = 0.41).
Forecasts vs actual
Fertility (TFR): past UN projections. The outcome was below the projection in 1 of 11 revisions (1998–2022) and above in 10; median gap +17%.
The UN 1998 projection expected this level (1.39) already around 2020: reality is 4 years behind it.
The UN 2004 projection expected this level (1.39) already around 2019: reality is 5 years behind it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 1.68 (+21% vs 2024), 2100 — 1.67 (+20% vs 2024); low variant for 2100: 1.17.
Births: past UN projections. The outcome was below the projection in 8 of 12 revisions (1998–2022) and above in 4; median gap −2.8%.
The UN 2004 projection did not expect today's level (134k, 2025) before its horizon ended (2047).
The UN 2022 projection expected today's level (134k, 2025) only around 2079: reality is 54 years ahead of it.
National statistics for 2025: 134k, 25% below the UN 2024 medium variant (179k) and below its 95% interval.
Births: UN 2024 projection (medium): 2050 — 146k (+9% vs 2025), 2100 — 87.3k (−35% vs 2025); low variant for 2100: 27.3k.
Population: past UN projections. The outcome was below the projection in 9 of 12 revisions (1998–2022) and above in 3; median gap −4.9%.
The UN 2004 projection expected today's level (19.1M, 2023) only around 2032: reality is 9 years ahead of it.
The UN 2022 projection expected today's level (19.1M, 2023) only around 2029: reality is 6 years ahead of it.
Population: UN 2024 projection (medium): 2050 — 16M (−16% vs 2023), 2100 — 10.8M (−44% vs 2023); low variant for 2100: 6.86M.
GDP growth: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 1 pp below the forecast; below it in 58% of cases; typical error ±2.8 pp. The biggest miss was for 2009: IMF, October 2008 expected 4.8%, the outcome was −5.5%.
GDP growth: latest IMF forecast (IMF, April 2026): 2026 — 0.7%, 2028 — 2.7%, 2031 — 3.1%.
Inflation: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 1.1 pp above the forecast; below it in 44% of cases; typical error ±2.4 pp. The biggest miss was for 2022: IMF, April 2021 expected 2.1%, the outcome was 13.8%.
Inflation: latest IMF forecast (IMF, April 2026): 2026 — 7.8%, 2028 — 4.3%, 2031 — 2.5%.
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
20.2M
19.1M
−5.3%
UN 2000
2023
23 years
20.8M
19.1M
−7.9%
UN 2002
2023
21 years
21M
19.1M
−8.9%
UN 2004
2023
19 years
20.1M
19.1M
−4.8%
UN 2006
2023
17 years
19.7M
19.1M
−3.1%
UN 2008
2023
15 years
20.1M
19.1M
−5%
UN 2010
2023
13 years
20.8M
19.1M
−8.1%
UN 2012
2023
11 years
21M
19.1M
−8.8%
UN 2015
2023
8 years
18.5M
19.1M
+3.5%
UN 2017
2023
6 years
19.1M
19.1M
0%
UN 2019
2023
4 years
18.9M
19.1M
+0.9%
UN 2022
2023
1 year
19.9M
19.1M
−3.9%
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
152k
172k
+13.4%
UN 2000
2020–2025
22 years
192k
172k
−10%
UN 2002
2020–2025
20 years
188k
172k
−8.1%
UN 2004
2020–2025
18 years
168k
172k
+2.8%
UN 2006
2020–2025
16 years
162k
172k
+6.5%
UN 2008
2020–2025
14 years
175k
172k
−1.2%
UN 2010
2020–2025
12 years
196k
172k
−12%
UN 2012
2020–2025
10 years
192k
172k
−10.4%
UN 2015
2020–2025
8 years
160k
172k
+7.5%
UN 2017
2020–2025
6 years
178k
172k
−3.2%
UN 2019
2020–2025
4 years
177k
172k
−2.4%
UN 2022
2025
3 years
197k
134k
−32%
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
1.35
1.72
+27.4%
UN 2000
2015–2020
18 years
1.48
1.72
+16.5%
UN 2002
2015–2020
16 years
1.47
1.72
+17%
UN 2004
2015–2020
14 years
1.36
1.72
+26.4%
UN 2006
2015–2020
12 years
1.37
1.72
+25.5%
UN 2008
2015–2020
10 years
1.40
1.72
+23.3%
UN 2010
2015–2020
8 years
1.51
1.72
+13.6%
UN 2012
2015–2020
6 years
1.48
1.72
+16.5%
UN 2015
2015–2020
2 years
1.54
1.72
+12.1%
UN 2017
2015–2020
0 years
1.54
1.72
+11.7%
UN 2022
2024
2 years
1.74
1.39
−20.1%
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
−1 pp
2.8 pp
58%
Inflation
36
+1.1 pp
2.4 pp
44%
Unemployment rate
29
+0.9 pp
0.9 pp
14%
Government gross debt
26
+0.7 pp
3.7 pp
54%
All indicators
Demography
Population
19.1M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.