Sierra Leone vs Yemen: Duration of pre-primary education
Sierra Leone
3 years
in 2025
Yemen
3 years
in 2025
Sierra Leone rank
27th
Yemen rank
27th
Duration of pre-primary education over time
- Sierra Leone
- Yemen
How they compare
Sierra Leone 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.
Sierra Leone ranks 27th and Yemen ranks 27th of 223 countries.
Yemen has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Sierra Leone | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2 years | 3 years | 1 years | Yemen |
| 1980s | 2 years | 3 years | 1 years | Yemen |
| 1990s | 2.2 years | 3 years | 0.8 years | Yemen |
| 2000s | 3 years | 3 years | 0 years | — |
| 2010s | 3 years | 3 years | 0 years | — |
| 2020s | 3 years | 3 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher duration of pre-primary education, Sierra Leone or Yemen?
- Sierra Leone, at 3 years against 3 years in Yemen as of 2025.
- What is the difference in duration of pre-primary education between Sierra Leone and Yemen?
- 0 years, with Sierra Leone ahead.
- How many years of comparable data are there for Sierra Leone and Yemen?
- 56 years are reported by both, from 1970 to 2025.
- How do Sierra Leone and Yemen rank globally for duration of pre-primary education?
- Sierra Leone ranks 27th and Yemen ranks 27th of 223 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Duration of pre-primary education. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Average number of years that a child is expected to spend in pre-primary education, defined by country's official educational regulations or laws.