School life expectancy … post-secondary both sexes years in Tonga
Tonga: School life expectancy … post-secondary both sexes years was 2.45 years in 2023. ◆ Volatile
School life expectancy, post-secondary non-tertiary, both sexes in Tonga, 1998–2023
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
Tonga recorded 2.45 years for school life expectancy, post-secondary non-tertiary, both sexes in 2023.
That represents a change of down 66.1% on the previous year and up 77.9% over ten years.
Over the whole period, school life expectancy, post-secondary non-tertiary, both sexes in Tonga peaked at 7.24 years in 2022 and was at its lowest, 0.0711 years, in 2000.
That places Tonga 2nd out of 130 countries with data for 2023, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
School life expectancy … post-secondary both sexes years in Tonga, year by year
| Year | years | Change |
|---|---|---|
| 1998 | 0.1646 years | — |
| 1999 | 0.1497 years | -9.1% |
| 2000 | 0.0711 years | -52.5% |
| 2001 | 0.1397 years | +96.4% |
| 2002 | 0.1457 years | +4.3% |
| 2003 | 0.1342 years | -7.9% |
| 2004 | 0.1206 years | -10.2% |
| 2005 | 0.1701 years | +41.1% |
| 2006 | 0.1847 years | +8.6% |
| 2015 | 1.38 years | +646.5% |
| 2018 | 2.28 years | +65.5% |
| 2019 | 2.11 years | -7.6% |
| 2020 | 2.35 years | +11.4% |
| 2021 | 4.26 years | +81.1% |
| 2022 | 7.24 years | +70.2% |
| 2023 | 2.45 years | -66.1% |
Tonga compared with similar countries
- Tonga's 2.45 years is above the median for upper middle income countries, which is 0.1721 years, 14.3× the median. (37 countries reporting)
- Tonga's 2.45 years is above the median for East Asia & Pacific, which is 0.2839 years, 8.6× the median. (18 countries reporting)
Biggest year-on-year movements
Years where School life expectancy … post-secondary both sexes years in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2015 | +646.5% | 0.1847 years | 1.38 years |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0.1572 years | 0.1497 years | 0.1646 years | 2 |
| 2000s | 0.138 years | 0.0711 years | 0.1847 years | 7 |
| 2010s | 1.92 years | 1.38 years | 2.28 years | 3 |
| 2020s | 4.08 years | 2.35 years | 7.24 years | 4 |
Countries ranked near Tonga
More education data for Tonga
- Gender gap education levels, gaps filled 87.87 (1999)
- Primary enrollment selected countries, gaps filled 98.13 (2023)
- 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)
Frequently asked questions
- What is school life expectancy, post-secondary non-tertiary, both sexes in Tonga?
- School life expectancy, post-secondary non-tertiary, both sexes in Tonga was 2.45 years in 2023, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, post-secondary non-tertiary, both sexes recorded in Tonga?
- The highest recorded value was 7.24 years in 2022.
- What is the lowest school life expectancy, post-secondary non-tertiary, both sexes recorded in Tonga?
- The lowest recorded value was 0.0711 years in 2000.
- How does Tonga rank for school life expectancy, post-secondary non-tertiary, both sexes?
- Tonga ranks 2nd out of 130 countries with data for 2023.
- Is school life expectancy, post-secondary non-tertiary, both sexes rising or falling in Tonga?
- Over the last ten years it is up 77.9%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, post-secondary non-tertiary, both sexes (years). Statizoid updates them automatically from the source API.
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About this data
February 2026 Data Release