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): 6.12 in 1950 → 1.62 in 2023 (−74%). Threshold: below 2.1 since 2002. The trend broke around 1960 and 1997: 0 → −0.1 → −0.03 a year.
Births: 2.48M in 1950 → 2.38M in 2024 (−4%). Peak: 4M in 1983; the latest value is 41% lower. The trend broke around 1958 and 1984: +72.5k → +35k → −35.5k a year.
Population: 53.4M in 1950 → 211M in 2023 (×4).
Internet: 0% in 1990 → 84.5% in 2024 (+84 pp). Thresholds: above 10% since 2003, above 50% since 2013. Fastest growth in 2001–2006: 4.5% → 28.2%.
Urban share: 44.7% in 1960 → 88.2% in 2025 (+43 pp). Thresholds: above 50% since 1967, above 75% since 1991. The trend broke around 1984 and 2002: +1.2 → +0.62 → +0.26 a year.
GDP per person (PPP): 12,633 PPP dollars in 1990 → 20,025 PPP dollars in 2025 (+59%). The trend broke around 2003 and 2011: +146 → +489 → +36 a year.
GDP growth: on average 3.0% in the 1980s, 1.7% in the 1990s, 3.4% in the 2000s, 1.4% in the 2010s, 2.2% in the 2020s. Lowest: −4.4% in 1981; highest: 9.2% in 1980.
Inflation: on average 328.1% in the 1980s, 843.2% in the 1990s, 6.9% in the 2000s, 5.8% in the 2010s, 5.8% in the 2020s. Lowest: 3.2% in 1998; highest: 2,948% in 1990.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1964–1974: 5.82 → 4.50. Over the same years: births 3.34M → 3.54M; population 81.5M → 105M; urban share 47.9% → 58.7%; no data for the others in those years.
Over the last 10 years (2013–2023): fertility (TFR) 1.76 → 1.62; births 2.94M → 2.6M; population 198M → 211M; internet 51% → 84.2%; urban share 85.2% → 87.6%; GDP per person (PPP) 19,242 PPP dollars → 19,080 PPP dollars; GDP growth 3% → 3.2%; inflation 6.2% → 4.6%.
How the indicators relate
Fertility (TFR) and internet (1990–2023, 34 years): levels are strongly related, in opposite directions (r = −0.87); year-to-year changes show no reliable link (r = −0.03). 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 strongly related, in opposite directions (r = −0.99); year-to-year changes show no reliable link (r = 0.01). 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) (1990–2023, 34 years): levels are strongly related, in opposite directions (r = −0.92); year-to-year changes show no reliable link (r = 0.28). 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 8 of 11 revisions (1998–2022) and above in 3; median gap −1.4%.
The UN 2004 projection did not expect today's level (1.62, 2023) before its horizon ended (2047).
The UN 2006 projection did not expect today's level (1.62, 2023) before its horizon ended (2047).
Fertility (TFR): UN 2024 projection (medium): 2050 — 1.56 (−4% vs 2023), 2100 — 1.58 (−3% vs 2023); low variant for 2100: 1.08.
Births: past UN projections. The outcome was below the projection in 9 of 11 revisions (1998–2022) and above in 2; median gap −8.1%.
The UN 2004 projection did not expect today's level (2.38M, 2024) before its horizon ended (2047).
The UN 2022 projection expected today's level (2.38M, 2024) only around 2040: reality is 16 years ahead of it.
National statistics for 2024: 2.38M, 8% below the UN 2024 medium variant (2.57M).
Births: UN 2024 projection (medium): 2050 — 1.99M (−16% vs 2024), 2100 — 1.27M (−47% vs 2024); low variant for 2100: 415k.
Population: past UN projections. The outcome was below the projection in 12 of 12 revisions (1998–2022) and above in none; median gap −2.3%.
The UN 2000 projection expected this level (211M) already around 2020: reality is 3 years behind it.
The UN 2006 projection expected this level (211M) already around 2015: reality is 8 years behind it.
Population: UN 2024 projection (medium): 2050 — 217M (+3% vs 2023), 2100 — 163M (−23% vs 2023); low variant for 2100: 106M.
GDP growth: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 0.6 pp below the forecast; below it in 50% of cases; typical error ±2.2 pp. The biggest miss was for 2015: IMF, April 2014 expected 2.7%, the outcome was −3.5%.
GDP growth: latest IMF forecast (IMF, April 2026): 2026 — 1.9%, 2028 — 2.4%, 2031 — 2.5%.
Inflation: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 1.2 pp above the forecast; below it in 36% of cases; typical error ±1.6 pp. The biggest miss was for 2021: IMF, October 2020 expected 2.9%, the outcome was 8.3%.
Inflation: latest IMF forecast (IMF, April 2026): 2026 — 4%, 2028 — 3%, 2031 — 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
215M
211M
−1.7%
UN 2000
2023
23 years
216M
211M
−2.1%
UN 2002
2023
21 years
214M
211M
−1.3%
UN 2004
2023
19 years
225M
211M
−6%
UN 2006
2023
17 years
225M
211M
−6.3%
UN 2008
2023
15 years
212M
211M
−0.4%
UN 2010
2023
13 years
214M
211M
−1.4%
UN 2012
2023
11 years
215M
211M
−1.8%
UN 2015
2023
8 years
220M
211M
−4.2%
UN 2017
2023
6 years
218M
211M
−3.1%
UN 2019
2023
4 years
217M
211M
−2.5%
UN 2022
2023
1 year
216M
211M
−2.4%
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
3.35M
2.86M
−14.7%
UN 2000
2015–2020
18 years
3.36M
2.86M
−14.8%
UN 2002
2015–2020
16 years
3.11M
2.86M
−8.1%
UN 2004
2015–2020
14 years
3.45M
2.86M
−17%
UN 2006
2015–2020
12 years
3.45M
2.86M
−17%
UN 2008
2015–2020
10 years
2.67M
2.86M
+7.3%
UN 2010
2015–2020
8 years
2.85M
2.86M
+0.4%
UN 2012
2015–2020
6 years
2.91M
2.86M
−1.7%
UN 2015
2015–2020
2 years
2.96M
2.86M
−3.3%
UN 2017
2015–2020
0 years
2.9M
2.86M
−1.2%
UN 2022
2024
2 years
2.68M
2.38M
−11.2%
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
1.73
−17.8%
UN 2000
2015–2020
18 years
2.10
1.73
−17.8%
UN 2002
2015–2020
16 years
1.91
1.73
−9.6%
UN 2004
2015–2020
14 years
2.06
1.73
−16.2%
UN 2006
2015–2020
12 years
2.06
1.73
−16.2%
UN 2008
2015–2020
10 years
1.60
1.73
+7.9%
UN 2010
2015–2020
8 years
1.72
1.73
+0.6%
UN 2012
2015–2020
6 years
1.75
1.73
−1.4%
UN 2015
2015–2020
2 years
1.74
1.73
−1%
UN 2017
2015–2020
0 years
1.71
1.73
+1.3%
UN 2022
2023
1 year
1.62
1.62
−0.1%
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
−0.6 pp
2.2 pp
50%
Inflation
36
+1.2 pp
1.6 pp
36%
Unemployment rate
29
+0.3 pp
1.8 pp
38%
Government gross debt
26
−2.2 pp
5 pp
65%
All indicators
Demography
Population
211M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.