Naoero vs Tonga: Primary school life expectancy, adjusted gender parity index
Naoero
1.04 index
in 2025
Tonga
1.04 index
in 2024
Naoero rank
13th
Tonga rank
16th
Primary school life expectancy, adjusted gender parity index over time
- Naoero
- Tonga
How they compare
Naoero currently reports 1.04 index against 1.04 index in Tonga, a difference of 0 index.
The two have swapped places 12 times across 23 shared years of data; in 1971 it was Naoero ahead.
Naoero ranks 13th and Tonga ranks 16th of 215 countries.
Across the 6 decades both report, Naoero averaged higher in 5 and Tonga in 1.
Head to head by decade
| Decade | Naoero | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 0.986 index | 0.9538 index | 0.0321 index | Naoero |
| 1980s | 0.8825 index | 0.9995 index | 0.117 index | Tonga |
| 1990s | 1.03 index | 0.9563 index | 0.0719 index | Naoero |
| 2000s | 1.04 index | 0.989 index | 0.0527 index | Naoero |
| 2010s | 1.01 index | 1.01 index | 0.0025 index | Naoero |
| 2020s | 1.05 index | 1.02 index | 0.0306 index | Naoero |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary school life expectancy, adjusted gender parity index, Naoero or Tonga?
- Naoero, at 1.04 index against 1.04 index in Tonga as of 2025.
- What is the difference in primary school life expectancy, adjusted gender parity index between Naoero and Tonga?
- 0 index, with Naoero ahead.
- How many years of comparable data are there for Naoero and Tonga?
- 23 years are reported by both, from 1971 to 2024.
- How do Naoero and Tonga rank globally for primary school life expectancy, adjusted gender parity index?
- Naoero ranks 13th and Tonga ranks 16th of 215 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) β with minor processing by Our World in Data, published as Primary school life expectancy, adjusted gender parity index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
An adjusted gender parity index of 1 indicates equality in the expected number of years a child of school entrance age is likely to spend in primary school between boys and girls. Values below 1 favor boys, and above 1 favor girls.