Spain vs Tonga: Upper secondary completion rate, adjusted gender parity index
Spain
1.16 index
in 2025
Tonga
1.14 index
in 2025
Spain rank
43rd
Tonga rank
45th
Upper secondary completion rate, adjusted gender parity index over time
- Spain
- Tonga
How they compare
Spain currently reports 1.16 index against 1.14 index in Tonga, a difference of 0.02 index.
The two have swapped places 3 times across 45 shared years of data; in 1981 it was Tonga ahead.
Spain ranks 43rd and Tonga ranks 45th of 164 countries.
Across the 5 decades both report, Spain averaged higher in 4 and Tonga in 1.
Head to head by decade
| Decade | Spain | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 1.02 index | 1.04 index | 0.0173 index | Tonga |
| 1990s | 1.12 index | 1.1 index | 0.0223 index | Spain |
| 2000s | 1.18 index | 1.13 index | 0.0478 index | Spain |
| 2010s | 1.16 index | 1.14 index | 0.0163 index | Spain |
| 2020s | 1.15 index | 1.15 index | 0.0071 index | Spain |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher upper secondary completion rate, adjusted gender parity index, Spain or Tonga?
- Spain, at 1.16 index against 1.14 index in Tonga as of 2025.
- What is the difference in upper secondary completion rate, adjusted gender parity index between Spain and Tonga?
- 0.02 index, with Spain ahead.
- How many years of comparable data are there for Spain and Tonga?
- 45 years are reported by both, from 1981 to 2025.
- How do Spain and Tonga rank globally for upper secondary completion rate, adjusted gender parity index?
- Spain ranks 43rd and Tonga ranks 45th of 164 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Upper secondary completion rate, 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 upper secondary school completion rates between boys and girls. Values below 1 favor boys, and values above 1 favor girls.