Iran vs Yemen: Theoretical duration of lower secondary education (years)
Iran
3 years
in 2025
Yemen
3 years
in 2025
Iran rank
91st
Yemen rank
91st
Theoretical duration of lower 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.
Across all 56 years both countries report, Yemen has been ahead every year.
Iran ranks 91st and Yemen ranks 91st of 221 countries.
Yemen has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Iran | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 3 years | 0 years | — |
| 1980s | 3 years | 3 years | 0 years | — |
| 1990s | 3 years | 3 years | 0 years | — |
| 2000s | 3 years | 3 years | 0 years | — |
| 2010s | 2.7 years | 3 years | 0.3 years | Yemen |
| 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 lower 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 lower 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 lower secondary education?
- Iran ranks 91st and Yemen ranks 91st of 221 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of lower 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