Iran vs Yemen: Theoretical duration of upper secondary education (years)
Iran
3 years
in 2025
Yemen
3 years
in 2025
Iran rank
52nd
Yemen rank
52nd
Theoretical duration of upper secondary education (years) over time
- Iran
- Yemen
How they compare
Iran currently reports 3 years against 3 years in Yemen, a difference of 0 years.
The two have swapped places 2 times across 56 shared years of data; in 1970 it was Yemen ahead.
Iran ranks 52nd and Yemen ranks 52nd of 221 countries.
Iran has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Iran | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3.2 years | 3 years | 0.2 years | Iran |
| 1980s | 4 years | 3 years | 1 years | Iran |
| 1990s | 4 years | 3 years | 1 years | Iran |
| 2000s | 4 years | 3 years | 1 years | Iran |
| 2010s | 3.6 years | 3 years | 0.6 years | Iran |
| 2020s | 3 years | 3 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education, Iran or Yemen?
- Iran, at 3 years against 3 years in Yemen as of 2025.
- What is the difference in theoretical duration of upper secondary education between Iran and Yemen?
- 0 years, with Iran ahead.
- How many years of comparable data are there for Iran and Yemen?
- 56 years are reported by both, from 1970 to 2025.
- How do Iran and Yemen rank globally for theoretical duration of upper secondary education?
- Iran ranks 52nd and Yemen ranks 52nd of 221 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