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): 2.27 in 1950 → 1.35 in 2023 (−41%). Thresholds: below 2.1 since 1990, below 1.5 since 2022. The trend broke around 1989 and 1995: 0 → −0.13 → +0.01 a year.
Births: 20.1k in 1950 → 11k in 2023 (−45%). Peak: 24.9k in 1987; the latest value is 56% lower. The trend broke around 1989 and 1995: +0.12k → −1.66k → +0.01k a year.
Population: 1.1M in 1950 → 1.37M in 2023 (+24%). Peak: 1.57M in 1990; the latest value is 13% lower. The trend broke around 1989 and 2002: +12.1k → −17.9k → −1.24k a year.
Internet: 0% in 1990 → 92.2% in 2024 (+92 pp). Thresholds: above 10% since 1998, above 50% since 2004, above 90% since 2021. Fastest growth in 1999–2004: 14.5% → 53.2%.
Urban share: 57.6% in 1960 → 70.7% in 2025 (+13 pp). The trend broke around 1984 and 2003: +0.54 → −0.28 → +0.17 a year.
GDP per person (PPP): 19,161 PPP dollars in 1990 → 41,604 PPP dollars in 2025 (+117%). Low: 13,757 PPP dollars in 1993; ×3 since then. The trend broke around 1996 and 2006: −482 → +1,677 → +663 a year.
GDP growth: on average 3.7% in the 1990s, 4.4% in the 2000s, 3.7% in the 2010s, 0.3% in the 2020s. Lowest: −14.6% in 2009; highest: 13.1% in 1997.
Inflation: on average 19.6% in the 1990s, 4.4% in the 2000s, 2.6% in the 2010s, 6.8% in the 2020s. Lowest: −0.6% in 2020; highest: 47.7% in 1994.
What changed at the same time
The fastest decline of "Fertility (TFR)" was in 1988–1998: 2.27 → 1.27. Over the same years: births 24.9k → 12.2k; population 1.56M → 1.41M; internet 10.8% (1998); urban share 71.4% → 67.7%; GDP per person (PPP) 18,872 PPP dollars (1998); GDP growth 4.3% (1998); inflation 8.8% (1998).
Over the last 10 years (2013–2023): fertility (TFR) 1.52 → 1.35; births 13.6k → 11k; population 1.32M → 1.37M; internet 80% → 93.2%; urban share 68.1% → 70.7%; GDP per person (PPP) 34,481 PPP dollars → 41,285 PPP dollars; GDP growth 1.8% → −2.7%; inflation 3.2% → 9.1%.
How the indicators relate
Fertility (TFR) and internet (1990–2023, 33 years): levels are barely related (r = 0.30); year-to-year changes are weakly related (r = 0.49).
Fertility (TFR) and urban share (1960–2023, 64 years): levels are barely related (r = −0.08); year-to-year changes show no reliable link (r = 0.25).
Fertility (TFR) and GDP per person (PPP) (1990–2023, 34 years): levels are barely related (r = 0.26); year-to-year changes are weakly related (r = 0.47).
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 −2%.
The UN 1998 projection expected this level (1.35) already around 2012: reality is 11 years behind it.
The UN 2000 projection expected this level (1.35) already around 2015: reality is 8 years behind it.
Fertility (TFR): UN 2024 projection (medium): 2050 — 1.51 (+12% vs 2023), 2100 — 1.57 (+17% vs 2023); low variant for 2100: 1.07.
Births: past UN projections. The outcome was below the projection in 5 of 11 revisions (1998–2022) and above in 6; median gap +1.1%.
The UN 2000 projection expected this level (11k) already around 2014: reality is 9 years behind it.
The UN 2022 projection expected today's level (11k, 2023) only around 2038: reality is 15 years ahead of it.
Births: UN 2024 projection (medium): 2050 — 9.78k (−11% vs 2023), 2100 — 6.1k (−45% vs 2023); low variant for 2100: 2.07k.
Population: past UN projections. The outcome was below the projection in 0 of 12 revisions (1998–2022) and above in 12; median gap +7.4%.
The UN 2000 projection expected this level (1.37M) already around 2001: reality is 22 years behind it.
Population: UN 2024 projection (medium): 2050 — 1.17M (−14% vs 2023), 2100 — 826k (−40% vs 2023); low variant for 2100: 555k.
GDP growth: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 2.1 pp below the forecast; below it in 61% of cases; typical error ±3.7 pp. The biggest miss was for 2009: IMF, April 2008 expected 3.7%, the outcome was −14.6%.
GDP growth: latest IMF forecast (IMF, April 2026): 2026 — 1.4%, 2028 — 2.3%, 2031 — 1.7%.
Inflation: IMF next-year forecasts (36 editions, 2007–2024). On average the outcome was 1.4 pp above the forecast; below it in 42% of cases; typical error ±2.9 pp. The biggest miss was for 2022: IMF, April 2021 expected 2.5%, the outcome was 19.4%.
Inflation: latest IMF forecast (IMF, April 2026): 2026 — 3.8%, 2028 — 2.8%, 2031 — 2.3%.
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
1.15M
1.37M
+19.3%
UN 2000
2023
23 years
1.09M
1.37M
+25.7%
UN 2002
2023
21 years
1.05M
1.37M
+30.6%
UN 2004
2023
19 years
1.26M
1.37M
+8.7%
UN 2006
2023
17 years
1.26M
1.37M
+8.3%
UN 2008
2023
15 years
1.33M
1.37M
+3.1%
UN 2010
2023
13 years
1.32M
1.37M
+3.4%
UN 2012
2023
11 years
1.25M
1.37M
+9.6%
UN 2015
2023
8 years
1.28M
1.37M
+6.6%
UN 2017
2023
6 years
1.29M
1.37M
+6%
UN 2019
2023
4 years
1.32M
1.37M
+3.8%
UN 2022
2023
1 year
1.32M
1.37M
+3.3%
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
10.1k
13.9k
+38.1%
UN 2000
2015–2020
18 years
10.6k
13.9k
+31.1%
UN 2002
2015–2020
16 years
10.3k
13.9k
+35.7%
UN 2004
2015–2020
14 years
13.5k
13.9k
+3.6%
UN 2006
2015–2020
12 years
13.8k
13.9k
+1.2%
UN 2008
2015–2020
10 years
16.5k
13.9k
−15.2%
UN 2010
2015–2020
8 years
15.7k
13.9k
−11.3%
UN 2012
2015–2020
6 years
13.8k
13.9k
+1.1%
UN 2015
2015–2020
2 years
14k
13.9k
−0.6%
UN 2017
2015–2020
0 years
14k
13.9k
−0.1%
UN 2022
2023
1 year
13.1k
11k
−15.7%
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
1.43
1.62
+13.9%
UN 2000
2015–2020
18 years
1.40
1.62
+15.9%
UN 2002
2015–2020
16 years
1.38
1.62
+17.6%
UN 2004
2015–2020
14 years
1.57
1.62
+3.2%
UN 2006
2015–2020
12 years
1.59
1.62
+2.3%
UN 2008
2015–2020
10 years
1.84
1.62
−11.6%
UN 2010
2015–2020
8 years
1.76
1.62
−7.6%
UN 2012
2015–2020
6 years
1.66
1.62
−2.2%
UN 2015
2015–2020
2 years
1.66
1.62
−2%
UN 2017
2015–2020
0 years
1.66
1.62
−2.2%
UN 2022
2023
1 year
1.68
1.35
−19.5%
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
−2.1 pp
3.7 pp
61%
Inflation
36
+1.4 pp
2.9 pp
42%
Unemployment rate
29
−0.6 pp
1.4 pp
62%
Government gross debt
26
+1 pp
2.8 pp
35%
All indicators
Demography
Population
1.37M persons, 1 July latest value, 2023
Population on 1 July. UN estimate to 2023, medium variant from 2024; past UN revisions for forecast checks.