School life expectancy, pre-primary, adjusted … pre-primary adjusted in Tonga
Tonga: School life expectancy, pre-primary, adjusted … pre-primary adjusted was 1.07 GPIA in 2024. ▼ Falling
Latest (2024)
1.07 GPIA
Change on year
down 4.4%
World rank
21st
of 205 countries
All-time high
1.36 GPIA
in 1975
All-time low
1.01 GPIA
in 2018
Years of data
14
1975–2024
School life expectancy, pre-primary, adjusted gender parity index in Tonga, 1975–2024
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
In 2024, school life expectancy, pre-primary, adjusted gender parity index in Tonga stood at 1.07 GPIA.
The figure is down 4.4% on the previous year and up 1.7% over ten years.
Over the whole period, school life expectancy, pre-primary, adjusted gender parity index in Tonga peaked at 1.36 GPIA in 1975 and was at its lowest, 1.01 GPIA, in 2018.
Tonga ranks 21st of 205 countries on this measure, in the top 10%.
The long-run direction has been consistently falling across the 14 years of available data.
School life expectancy, pre-primary, adjusted … pre-primary adjusted in Tonga, year by year
| Year | GPIA | Change |
|---|---|---|
| 1975 | 1.36 GPIA | — |
| 1998 | 1.11 GPIA | -18.0% |
| 1999 | 1.17 GPIA | +5.3% |
| 2004 | 1.3 GPIA | +11.3% |
| 2012 | 1.04 GPIA | -20.3% |
| 2014 | 1.05 GPIA | +1.0% |
| 2015 | 1.07 GPIA | +2.2% |
| 2018 | 1.01 GPIA | -6.0% |
| 2019 | 1.03 GPIA | +2.6% |
| 2020 | 1.09 GPIA | +5.7% |
| 2021 | 1.06 GPIA | -3.0% |
| 2022 | 1.06 GPIA | +0.6% |
| 2023 | 1.11 GPIA | +4.7% |
| 2024 | 1.07 GPIA | -4.4% |
Tonga compared with similar countries
- Tonga's 1.07 GPIA is above the median for upper middle income countries, which is 1.01 GPIA, 1.1× the median. (56 countries reporting)
- Tonga's 1.07 GPIA is above the median for East Asia & Pacific, which is 1 GPIA, 1.1× the median. (31 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 1.36 GPIA | 1.36 GPIA | 1.36 GPIA | 1 |
| 1990s | 1.14 GPIA | 1.11 GPIA | 1.17 GPIA | 2 |
| 2000s | 1.3 GPIA | 1.3 GPIA | 1.3 GPIA | 1 |
| 2010s | 1.04 GPIA | 1.01 GPIA | 1.07 GPIA | 5 |
| 2020s | 1.08 GPIA | 1.06 GPIA | 1.11 GPIA | 5 |
Countries ranked near Tonga
- 18 Guinea-Bissau 1.07 GPIA compare
- 19 Niger 1.07 GPIA compare
- 20 Samoa 1.07 GPIA compare
- 22 Trinidad and Tobago 1.07 GPIA compare
- 23 Marshall Islands 1.07 GPIA compare
- 24 Oman 1.06 GPIA compare
More education data for Tonga
- Teachers in secondary education, both sexes (number), gaps filled 1,086 (2015)
- Repeaters in primary education, all grades, both sexes (number), gaps 20 (2024)
- Enrolment in pre-primary education, male (number), gaps filled 1,228 (2024)
- Enrolment in pre-primary education, female (number), gaps filled 1,164 (2024)
- Secondary education, pupils, gaps filled 16,132 (2024)
- Primary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Primary education, pupils, gaps filled 15,644 (2024)
- Primary education, pupils, annual growth rate -2.92 % change on previous year (2024)
- Primary education, pupils, per unit of GDP 0 units per US$ of GDP (2024)
- Primary education, pupils, per capita 0.1502 units per person (2024)
Frequently asked questions
- What is school life expectancy, pre-primary, adjusted gender parity index in Tonga?
- School life expectancy, pre-primary, adjusted gender parity index in Tonga was 1.07 GPIA in 2024, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, pre-primary, adjusted gender parity index recorded in Tonga?
- The highest recorded value was 1.36 GPIA in 1975.
- What is the lowest school life expectancy, pre-primary, adjusted gender parity index recorded in Tonga?
- The lowest recorded value was 1.01 GPIA in 2018.
- How does Tonga rank for school life expectancy, pre-primary, adjusted gender parity index?
- Tonga ranks 21st out of 205 countries with data for 2024.
- Is school life expectancy, pre-primary, adjusted gender parity index rising or falling in Tonga?
- Over the last ten years it is up 1.7%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, pre-primary, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 14 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release