School life expectancy, post-secondary non-tertiary, adjusted gender in Tonga
Tonga: School life expectancy, post-secondary non-tertiary, adjusted gender was 1.52 GPIA in 2023. ▼ Falling
School life expectancy, post-secondary non-tertiary, adjusted gender in Tonga, 1998–2023
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
In 2023, school life expectancy, post-secondary non-tertiary, adjusted gender in Tonga stood at 1.52 GPIA.
Compared with earlier readings it is up 26.2% on the previous year and up 48.1% over ten years.
Over the whole period, school life expectancy, post-secondary non-tertiary, adjusted gender in Tonga peaked at 1.59 GPIA in 1999 and was at its lowest, 0.8768 GPIA, in 2021.
That places Tonga 16th out of 123 countries with data for 2023, putting it in the top quarter.
The long-run direction has been consistently falling across the 16 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 1.49 GPIA | 1.39 GPIA | 1.59 GPIA | 2 |
| 2000s | 1.27 GPIA | 1.15 GPIA | 1.35 GPIA | 7 |
| 2010s | 1.12 GPIA | 1.02 GPIA | 1.19 GPIA | 3 |
| 2020s | 1.23 GPIA | 0.8768 GPIA | 1.52 GPIA | 4 |
Countries ranked near Tonga
- 13 Norway 1.55 GPIA compare
- 14 Georgia 1.55 GPIA compare
- 15 Saint Vincent and the Grenadines 1.53 GPIA compare
- 17 Dominica 1.5 GPIA compare
- 18 South Africa 1.5 GPIA compare
- 19 Seychelles 1.49 GPIA compare
More education data for Tonga
- Primary education, teachers, gaps filled 818 (2024)
- Duration of pre primary education, annual growth rate 0 % change on previous year (2025)
- Duration of pre primary education 2 (2025)
- Official entrance age to pre primary education 4 (2025)
- Population ages 15-64 58.2% (2025)
- Population ages 0-14 34.9% (2025)
- Lower secondary school starting age 12 years (2025)
- Primary school starting age 6 years (2025)
- Primary secondary enrollment completion rates, gaps filled 108.79 (2024)
- School enrollment, primary 108.8% (2024)
Frequently asked questions
- What is school life expectancy, post-secondary non-tertiary, adjusted gender in Tonga?
- School life expectancy, post-secondary non-tertiary, adjusted gender in Tonga was 1.52 GPIA in 2023, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, post-secondary non-tertiary, adjusted gender recorded in Tonga?
- The highest recorded value was 1.59 GPIA in 1999.
- What is the lowest school life expectancy, post-secondary non-tertiary, adjusted gender recorded in Tonga?
- The lowest recorded value was 0.8768 GPIA in 2021.
- How does Tonga rank for school life expectancy, post-secondary non-tertiary, adjusted gender?
- Tonga ranks 16th out of 123 countries with data for 2023.
- Is school life expectancy, post-secondary non-tertiary, adjusted gender rising or falling in Tonga?
- Over the last ten years it is up 48.1%. 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, post-secondary non-tertiary, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 16 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release