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): 7.25 in 1950 → 4.84 in 2023 (−33%). Peak: 7.77 in 1994; the latest value is 38% lower. The trend broke around 1999: direction reversed (+0.01 → −0.15 a year).
Births: 384k in 1950 → 1.47M in 2023 (×3.8). The trend broke around 1978 and 1984: +11.9k → −20.7k → +24.5k a year.
Population: 7.78M in 1950 → 41.5M in 2023 (×5.3). The trend broke around 1978 and 1989: +206k → −204k → +883k a year.
Internet: 0% in 1990 → 16.1% in 2024 (+16 pp). Threshold: above 10% since 2016. Fastest growth in 2013–2018: 5.9% → 16.8%.
Urban share: 8.1% in 1960 → 25.9% in 2025 (+18 pp). The trend broke around 1981 and 2000: +0.4 → +0.13 → +0.33 a year.
GDP per person (PPP): 1,618 PPP dollars in 2000 → 1,964 PPP dollars in 2024 (+21%). Peak: 3,047 PPP dollars in 2013; the latest value is 36% lower. The trend broke around 2012 and 2018: +128 → +12 → −200 a year.
GDP growth: on average 9.2% in the 2000s, 4.8% in the 2010s, −3.8% in the 2020s. Lowest: −14.5% in 2021; highest: 20.6% in 2009.
Inflation: on average 14.0% in the 2000s, 4.4% in the 2010s, 2.5% in the 2020s. Lowest: −7.7% in 2023; highest: 35.7% in 2003.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 2000–2010: 7.57 → 6.20. Over the same years: births 1.04M → 1.18M; population 20.1M → 28.3M; internet 0% → 4%; urban share 18.6% → 22.3%; GDP per person (PPP) 1,618 PPP dollars → 2,849 PPP dollars; GDP growth 8.4% (2010); inflation 2.2% (2010).
Over the last 10 years (2013–2023): fertility (TFR) 5.88 → 4.84; births 1.27M → 1.47M; population 31.6M → 41.5M; internet 5.9% → 15.9%; urban share 23.8% → 25.5%; GDP per person (PPP) 3,047 PPP dollars → 1,984 PPP dollars; GDP growth 5.7% → 2.3%; inflation 7.4% → −7.7%.
How the indicators relate
Fertility (TFR) and internet (1990–2023, 24 years): levels are strongly related, in opposite directions (r = −0.93); year-to-year changes show no reliable link (r = 0.05). 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 = −0.74); year-to-year changes show no reliable link (r = −0.36). 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) (2000–2023, 24 years): levels are noticeably related, in opposite directions (r = −0.61); year-to-year changes show no reliable link (r = 0.14).
Forecasts vs actual
Fertility (TFR): past UN projections. The outcome was below the projection in 5 of 11 revisions (1998–2022) and above in 6; median gap +0.8%.
The UN 1998 projection expected this level (4.84) already around 2014: reality is 9 years behind it.
The UN 2012 projection expected this level (4.84) already around 2013: reality is 10 years behind it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 3.09 (−36% vs 2023), 2100 — 2.06 (−57% vs 2023); low variant for 2100: 1.56.
Births: past UN projections. The outcome was below the projection in 6 of 11 revisions (1998–2022) and above in 5; median gap −10%.
The UN 2000 projection expected this level (1.47M) already around 2013: reality is 10 years behind it.
The UN 2022 projection expected today's level (1.47M, 2023) only around 2025: reality is 2 years ahead of it.
Births: UN 2024 projection (medium): 2050 — 1.81M (+23% vs 2023), 2100 — 1.81M (+23% vs 2023); low variant for 2100: 962k.
Population: past UN projections. The outcome was below the projection in 9 of 12 revisions (1998–2022) and above in 3; median gap −3.3%.
The UN 1998 projection expected this level (41.5M) already around 2020: reality is 3 years behind it.
The UN 2022 projection expected this level (41.5M) already around 2022: reality is 1 year behind it.
Population: UN 2024 projection (medium): 2050 — 76.9M (+85% vs 2023), 2100 — 130M (×3.1 vs 2023); low variant for 2100: 95.8M.
GDP growth: IMF next-year forecasts (29 editions, 2007–2021). On average the outcome was 1.8 pp below the forecast; below it in 76% of cases; typical error ±4.6 pp. The biggest miss was for 2021: IMF, April 2020 expected 4.5%, the outcome was −14.5%.
GDP growth: latest IMF forecast (IMF, April 2026): 2025 — 3%.
Inflation: IMF next-year forecasts (29 editions, 2007–2021). On average the outcome was 0.4 pp above the forecast; below it in 48% of cases; typical error ±5.4 pp. The biggest miss was for 2008: IMF, April 2007 expected 5.9%, the outcome was 26.4%.
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
43.3M
41.5M
−4.2%
UN 2000
2023
23 years
43.2M
41.5M
−3.9%
UN 2002
2023
21 years
43M
41.5M
−3.5%
UN 2004
2023
19 years
52.4M
41.5M
−20.9%
UN 2006
2023
17 years
44.5M
41.5M
−6.8%
UN 2008
2023
15 years
42.8M
41.5M
−3.1%
UN 2010
2023
13 years
45.4M
41.5M
−8.7%
UN 2012
2023
11 years
38M
41.5M
+9.1%
UN 2015
2023
8 years
38.7M
41.5M
+7.1%
UN 2017
2023
6 years
40.6M
41.5M
+2%
UN 2019
2023
4 years
41.7M
41.5M
−0.5%
UN 2022
2023
1 year
42.2M
41.5M
−1.9%
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
2015–2020
20 years
1.3M
1.38M
+6.1%
UN 2000
2015–2020
18 years
1.53M
1.38M
−10.4%
UN 2002
2015–2020
16 years
1.53M
1.38M
−10%
UN 2004
2015–2020
14 years
2M
1.38M
−31.3%
UN 2006
2015–2020
12 years
1.73M
1.38M
−20.3%
UN 2008
2015–2020
10 years
1.6M
1.38M
−14.1%
UN 2010
2015–2020
8 years
1.56M
1.38M
−12%
UN 2012
2015–2020
6 years
1.03M
1.38M
+34.1%
UN 2015
2015–2020
2 years
1.09M
1.38M
+26.6%
UN 2017
2015–2020
0 years
1.16M
1.38M
+18.7%
UN 2022
2023
1 year
1.46M
1.47M
+0.7%
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
4.50
5.39
+19.7%
UN 2000
2015–2020
18 years
5.70
5.39
−5.5%
UN 2002
2015–2020
16 years
5.65
5.39
−4.6%
UN 2004
2015–2020
14 years
6.24
5.39
−13.7%
UN 2006
2015–2020
12 years
6.24
5.39
−13.7%
UN 2008
2015–2020
10 years
5.85
5.39
−7.8%
UN 2010
2015–2020
8 years
5.35
5.39
+0.8%
UN 2012
2015–2020
6 years
4.04
5.39
+33.5%
UN 2015
2015–2020
2 years
4.25
5.39
+26.9%
UN 2017
2015–2020
0 years
4.41
5.39
+22.1%
UN 2022
2023
1 year
4.41
4.84
+9.8%
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
29
−1.8 pp
4.6 pp
76%
Inflation
29
+0.4 pp
5.4 pp
48%
Government gross debt
10
+0.5 pp
0.7 pp
40%
All indicators
Demography
Population
41.5M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.