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): 7.44 in 1950 → 2.64 in 2023 (−65%). Peak: 8.19 in 1969; the latest value is 68% lower. The trend broke around 1974 and 1998: +0.04 → −0.17 → −0.06 a year.
Births: 20.5k in 1950 → 236k in 2023 (×12). The trend broke around 2017: change slowed down (+4.84k → +0.26k a year).
Population: 439k in 1950 → 11.4M in 2023 (×26). The trend broke around 1982 and 2009: +63.1k → +174k → +350k a year.
Internet: 0% in 1990 → 95.6% in 2024 (+96 pp). Thresholds: above 10% since 2004, above 50% since 2015, above 90% since 2022. Fastest growth in 2016–2021: 56.2% → 86%.
Urban share: 42.7% in 1960 → 93.2% in 2025 (+50 pp). Thresholds: above 50% since 1970, above 75% since 1990. The trend broke around 1995 and 2004: +1.1 → −0.03 → +0.83 a year.
GDP per person (PPP): 8,242 PPP dollars in 1990 → 10,794 PPP dollars in 2025 (+31%). Peak: 12,104 PPP dollars in 2012; the latest value is 11% lower. The trend broke around 2000 and 2009: +62 → +347 → −126 a year.
GDP growth: on average 3.9% in the 1980s, 3.7% in the 1990s, 6.7% in the 2000s, 2.5% in the 2010s, 2.2% in the 2020s. Lowest: −10.7% in 1989; highest: 16.9% in 1992.
Inflation: on average 7.8% in the 1980s, 5.1% in the 1990s, 3.7% in the 2000s, 2.8% in the 2010s, 1.9% in the 2020s. Lowest: −0.9% in 2015; highest: 25.7% in 1989.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1988–1998: 6.01 → 4.11. Over the same years: births 124k → 160k; population 3.19M → 5.16M; internet 1.3% (1998); urban share 72.3% → 78.3%; GDP per person (PPP) 8,499 PPP dollars (1998); GDP growth 2.9% → 3.2%; inflation 6.7% → 3.1%.
Over the last 10 years (2013–2023): fertility (TFR) 3.45 → 2.64; births 199k → 236k; population 7.99M → 11.4M; internet 41.4% → 92.5%; urban share 86.5% → 92.7%; GDP per person (PPP) 11,804 PPP dollars → 10,309 PPP dollars; GDP growth 2.7% → 3.1%; inflation 4.8% → 2.1%.
How the indicators relate
Fertility (TFR) and internet (1990–2023, 30 years): levels are strongly related, in opposite directions (r = −0.88); year-to-year changes show no reliable link (r = −0.02). 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 = −0.96); 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) (1990–2023, 34 years): levels are noticeably related, in opposite directions (r = −0.59); year-to-year changes are related too (r = 0.54). Changes line up from year to year too, which is more than a shared trend.
Forecasts vs actual
Fertility (TFR): past UN projections. The outcome was below the projection in 6 of 11 revisions (1998–2022) and above in 5; median gap −0.7%.
The UN 1998 projection expected today's level (2.64, 2023) only around 2024: reality is 1 year ahead of it.
The UN 2022 projection expected today's level (2.64, 2023) only around 2026: reality is 3 years ahead of it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 1.99 (−24% vs 2023), 2100 — 1.73 (−34% vs 2023); low variant for 2100: 1.23.
Births: past UN projections. The outcome was below the projection in 3 of 11 revisions (1998–2022) and above in 8; median gap +30%.
The UN 2017 projection expected today's level (236k, 2023) only around 2026: reality is 3 years ahead of it.
Births: UN 2024 projection (medium): 2050 — 239k (+1% vs 2023), 2100 — 220k (−7% vs 2023); low variant for 2100: 97.9k.
Population: past UN projections. The outcome was below the projection in 1 of 12 revisions (1998–2022) and above in 11; median gap +36%.
The UN 1998 projection expected this level (11.4M) already around 2021: reality is 2 years behind it.
The UN 2022 projection expected today's level (11.4M, 2023) only around 2025: reality is 2 years ahead of it.
Population: UN 2024 projection (medium): 2050 — 16.4M (+43% vs 2023), 2100 — 21.3M (+86% vs 2023); low variant for 2100: 15.2M.
GDP growth: IMF next-year forecasts (34 editions, 2007–2023). On average the outcome was 0.7 pp below the forecast; below it in 76% of cases; typical error ±1 pp. The biggest miss was for 2020: IMF, April 2019 expected 2.4%, the outcome was −1.2%.
GDP growth: latest IMF forecast (IMF, April 2026): 2025 — 2.7%, 2027 — 3.1%, 2031 — 3%.
Inflation: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 0.3 pp below the forecast; below it in 69% of cases; typical error ±2.3 pp. The biggest miss was for 2008: IMF, April 2007 expected 3.5%, the outcome was 14%.
Inflation: latest IMF forecast (IMF, April 2026): 2026 — 2.3%, 2028 — 2.2%, 2031 — 2.2%.
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
11.7M
11.4M
−1.8%
UN 2000
2023
23 years
8.38M
11.4M
+36.5%
UN 2002
2023
21 years
7.9M
11.4M
+44.9%
UN 2004
2023
19 years
7.91M
11.4M
+44.7%
UN 2006
2023
17 years
7.81M
11.4M
+46.5%
UN 2008
2023
15 years
7.86M
11.4M
+45.5%
UN 2010
2023
13 years
7.69M
11.4M
+48.7%
UN 2012
2023
11 years
8.46M
11.4M
+35.2%
UN 2015
2023
8 years
8.39M
11.4M
+36.4%
UN 2017
2023
6 years
10.5M
11.4M
+9.2%
UN 2019
2023
4 years
10.3M
11.4M
+10.9%
UN 2022
2023
1 year
11.3M
11.4M
+0.9%
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
257k
236k
−8.2%
UN 2000
2015–2020
18 years
182k
236k
+30%
UN 2002
2015–2020
16 years
148k
236k
+59.3%
UN 2004
2015–2020
14 years
149k
236k
+58.4%
UN 2006
2015–2020
12 years
148k
236k
+60%
UN 2008
2015–2020
10 years
151k
236k
+56.2%
UN 2010
2015–2020
8 years
153k
236k
+54.3%
UN 2012
2015–2020
6 years
189k
236k
+24.9%
UN 2015
2015–2020
2 years
196k
236k
+20.3%
UN 2017
2015–2020
0 years
247k
236k
−4.4%
UN 2022
2023
1 year
243k
236k
−3.1%
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
3.16
2.96
−6.3%
UN 2000
2015–2020
18 years
3.18
2.96
−6.7%
UN 2002
2015–2020
16 years
2.52
2.96
+17.6%
UN 2004
2015–2020
14 years
2.54
2.96
+16.6%
UN 2006
2015–2020
12 years
2.54
2.96
+16.6%
UN 2008
2015–2020
10 years
2.54
2.96
+16.6%
UN 2010
2015–2020
8 years
2.60
2.96
+13.8%
UN 2012
2015–2020
6 years
2.98
2.96
−0.7%
UN 2015
2015–2020
2 years
3.20
2.96
−7.3%
UN 2017
2015–2020
0 years
3.26
2.96
−9.3%
UN 2022
2023
1 year
2.75
2.64
−3.9%
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
−0.7 pp
1 pp
76%
Inflation
36
−0.3 pp
2.3 pp
69%
Unemployment rate
9
0 pp
0.5 pp
67%
Government gross debt
26
−14.1 pp
14.3 pp
96%
All indicators
Demography
Population
11.4M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.