Costa Rica vs Tonga: Lower secondary school completion rates, adjusted gender parity index
Costa Rica
1.11 index
in 2025
Tonga
1.11 index
in 2025
Costa Rica rank
36th
Tonga rank
37th
Lower secondary school completion rates, adjusted gender parity index over time
- Costa Rica
- Tonga
How they compare
Costa Rica currently reports 1.11 index against 1.11 index in Tonga, a difference of 0 index.
The two have swapped places 3 times across 45 shared years of data; in 1981 it was Tonga ahead.
Costa Rica ranks 36th and Tonga ranks 37th of 164 countries.
Across the 5 decades both report, Costa Rica averaged higher in 2 and Tonga in 3.
Head to head by decade
| Decade | Costa Rica | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.9821 index | 1.05 index | 0.0648 index | Tonga |
| 1990s | 1.01 index | 1.08 index | 0.0736 index | Tonga |
| 2000s | 1.11 index | 1.11 index | 0.0003 index | Costa Rica |
| 2010s | 1.12 index | 1.12 index | 0.0026 index | Costa Rica |
| 2020s | 1.11 index | 1.11 index | 0.0018 index | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher lower secondary school completion rates, adjusted gender parity index, Costa Rica or Tonga?
- Costa Rica, at 1.11 index against 1.11 index in Tonga as of 2025.
- What is the difference in lower secondary school completion rates, adjusted gender parity index between Costa Rica and Tonga?
- 0 index, with Costa Rica ahead.
- How many years of comparable data are there for Costa Rica and Tonga?
- 45 years are reported by both, from 1981 to 2025.
- How do Costa Rica and Tonga rank globally for lower secondary school completion rates, adjusted gender parity index?
- Costa Rica ranks 36th and Tonga ranks 37th of 164 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Lower secondary school completion rates, 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 equal lower secondary school completion rates between boys and girls. Values below 1 favor boys, and values above 1 favor girls.