Tonga vs Yemen: Theoretical duration of upper secondary education
Tonga
3 years
in 2025
Yemen
3 years
in 2025
Tonga rank
52nd
Yemen rank
52nd
Theoretical duration of upper secondary education over time
- Tonga
- Yemen
How they compare
Tonga currently reports 3 years against 3 years in Yemen, a difference of 0 years.
Across all 56 years both countries report, Yemen has been ahead every year.
Tonga ranks 52nd and Yemen ranks 52nd of 215 countries.
Yemen has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Tonga | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2 years | 3 years | 1 years | Yemen |
| 1980s | 2.6 years | 3 years | 0.4 years | Yemen |
| 1990s | 2.8 years | 3 years | 0.2 years | Yemen |
| 2000s | 2 years | 3 years | 1 years | Yemen |
| 2010s | 2 years | 3 years | 1 years | Yemen |
| 2020s | 2.5 years | 3 years | 0.5 years | Yemen |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education, Tonga or Yemen?
- Tonga, at 3 years against 3 years in Yemen as of 2025.
- What is the difference in theoretical duration of upper secondary education between Tonga and Yemen?
- 0 years, with Tonga ahead.
- How many years of comparable data are there for Tonga and Yemen?
- 56 years are reported by both, from 1970 to 2025.
- How do Tonga and Yemen rank globally for theoretical duration of upper secondary education?
- Tonga ranks 52nd and Yemen ranks 52nd of 215 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
February 2026 Data Release