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): 6.70 in 1950 → 3.40 in 2023 (−49%). Peak: 6.95 in 1969; the latest value is 51% lower. The trend broke around 1974: direction reversed (+0.01 → −0.08 a year).
Births: 244k in 1950 → 889k in 2023 (×3.6). The trend broke around 2013: change slowed down (+13.7k → +0.31k a year).
Population: 5.08M in 1950 → 33.8M in 2023 (×6.6). The trend broke around 1999: change sped up (+362k → +620k a year).
Internet: 0% in 1990 → 72.2% in 2024 (+72 pp). Thresholds: above 10% since 2012, above 50% since 2020. Fastest growth in 2019–2024: 22.1% → 72.2%.
Urban share: 23.3% in 1960 → 58.9% in 2025 (+36 pp). Threshold: above 50% since 2009. The trend broke around 1987: change sped up (+0.32 → +0.78 a year).
GDP per person (PPP): 2,786 PPP dollars in 1990 → 7,358 PPP dollars in 2025 (×2.6). The trend broke around 2007 and 2013: +63 → +273 → +146 a year.
GDP growth: on average 2.2% in the 1980s, 4.5% in the 1990s, 5.3% in the 2000s, 6.7% in the 2010s, 3.7% in the 2020s. Lowest: −8.3% in 1982; highest: 14% in 2011.
Inflation: on average 48.2% in the 1980s, 27.6% in the 1990s, 17.9% in the 2000s, 11.3% in the 2010s, 22.8% in the 2020s. Lowest: 6.7% in 2010; highest: 122.2% in 1983.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1987–1997: 6.02 → 4.88. Over the same years: births 603k → 649k; population 14.3M → 18.2M; internet 0% (1997); urban share 33.6% → 41.6%; GDP per person (PPP) 3,160 PPP dollars (1997); GDP growth 6.7% → 5.8%; inflation 39.8% → 24.8%.
Over the last 10 years (2013–2023): fertility (TFR) 4.11 → 3.40; births 882k → 889k; population 27.4M → 33.8M; internet 15% → 70.7%; urban share 52.5% → 57.8%; GDP per person (PPP) 5,594 PPP dollars → 6,809 PPP dollars; GDP growth 7.2% → 3.1%; inflation 11.7% → 39.2%.
How the indicators relate
Fertility (TFR) and internet (1990–2023, 30 years): levels are strongly related, in opposite directions (r = −0.82); year-to-year changes show no reliable link (r = −0.08). 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 = −0.12). 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 = −0.94); year-to-year changes show no reliable link (r = 0.16). 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 +3.4%.
The UN 1998 projection expected this level (3.40) already around 2018: reality is 5 years behind it.
The UN 2022 projection expected today's level (3.40, 2023) only around 2024: reality is 1 year ahead of it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 2.55 (−25% vs 2023), 2100 — 1.93 (−43% vs 2023); low variant for 2100: 1.43.
Births: past UN projections. The outcome was below the projection in 4 of 11 revisions (1998–2022) and above in 7; median gap +8%.
The UN 2010 projection expected today's level (889k, 2023) only around 2033: reality is 10 years ahead of it.
The UN 2017 projection expected this level (889k) already around 2019: reality is 4 years behind it.
Births: UN 2024 projection (medium): 2050 — 997k (+12% vs 2023), 2100 — 856k (−4% vs 2023); low variant for 2100: 389k.
Population: past UN projections. The outcome was below the projection in 2 of 12 revisions (1998–2022) and above in 10; median gap +6.3%.
The UN 1998 projection expected this level (33.8M) already around 2020: reality is 3 years behind it.
The UN 2022 projection expected this level (33.8M) already around 2022: reality is 1 year behind it.
Population: UN 2024 projection (medium): 2050 — 50.6M (+50% vs 2023), 2100 — 67.5M (+100% vs 2023); low variant for 2100: 46.2M.
GDP growth: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 0.8 pp below the forecast; below it in 62% of cases; typical error ±2.3 pp. The biggest miss was for 2011: IMF, April 2010 expected 20.1%, the outcome was 14%.
GDP growth: latest IMF forecast (IMF, April 2026): 2025 — 6%, 2027 — 4.9%, 2031 — 5%.
Inflation: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 4.4 pp above the forecast; below it in 29% of cases; typical error ±5.1 pp. The biggest miss was for 2023: IMF, April 2022 expected 13%, the outcome was 39.2%.
Inflation: latest IMF forecast (IMF, April 2026): 2025 — 14.2%, 2027 — 7.8%, 2031 — 8%.
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
35.5M
33.8M
−4.8%
UN 2000
2023
23 years
30.1M
33.8M
+12.3%
UN 2002
2023
21 years
29.8M
33.8M
+13.4%
UN 2004
2023
19 years
30.1M
33.8M
+12.3%
UN 2006
2023
17 years
31.1M
33.8M
+8.7%
UN 2008
2023
15 years
31.2M
33.8M
+8.4%
UN 2010
2023
13 years
32.2M
33.8M
+5.1%
UN 2012
2023
11 years
31.4M
33.8M
+7.6%
UN 2015
2023
8 years
32.4M
33.8M
+4.2%
UN 2017
2023
6 years
32.7M
33.8M
+3.4%
UN 2019
2023
4 years
33.1M
33.8M
+2.2%
UN 2022
2023
1 year
34.1M
33.8M
−1%
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
906k
876k
−3.3%
UN 2000
2015–2020
18 years
698k
876k
+25.5%
UN 2002
2015–2020
16 years
664k
876k
+31.9%
UN 2004
2015–2020
14 years
699k
876k
+25.3%
UN 2006
2015–2020
12 years
714k
876k
+22.6%
UN 2008
2015–2020
10 years
808k
876k
+8.4%
UN 2010
2015–2020
8 years
811k
876k
+8%
UN 2012
2015–2020
6 years
813k
876k
+7.7%
UN 2015
2015–2020
2 years
890k
876k
−1.6%
UN 2017
2015–2020
0 years
881k
876k
−0.6%
UN 2022
2023
1 year
910k
889k
−2.3%
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
3.50
3.72
+6.3%
UN 2000
2015–2020
18 years
3.06
3.72
+21.5%
UN 2002
2015–2020
16 years
2.87
3.72
+29.6%
UN 2004
2015–2020
14 years
3.06
3.72
+21.5%
UN 2006
2015–2020
12 years
3.06
3.72
+21.5%
UN 2008
2015–2020
10 years
3.65
3.72
+1.9%
UN 2010
2015–2020
8 years
3.68
3.72
+1.1%
UN 2012
2015–2020
6 years
3.60
3.72
+3.4%
UN 2015
2015–2020
2 years
3.95
3.72
−5.9%
UN 2017
2015–2020
0 years
3.89
3.72
−4.5%
UN 2022
2023
1 year
3.46
3.40
−1.7%
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
−0.8 pp
2.3 pp
62%
Inflation
34
+4.4 pp
5.1 pp
29%
Government gross debt
26
−4.7 pp
10 pp
73%
All indicators
Demography
Population
33.8M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.