El Salvador vs Sierra Leone: Theoretical duration of lower secondary education
El Salvador
3 years
in 2025
Sierra Leone
3 years
in 2025
El Salvador rank
91st
Sierra Leone rank
91st
Theoretical duration of lower secondary education over time
- El Salvador
- Sierra Leone
How they compare
El Salvador currently reports 3 years against 3 years in Sierra Leone, a difference of 0 years.
Across all 56 years both countries report, Sierra Leone has been ahead every year.
El Salvador ranks 91st and Sierra Leone ranks 91st of 221 countries.
Sierra Leone has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | El Salvador | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 5 years | 2 years | Sierra Leone |
| 1980s | 3 years | 5 years | 2 years | Sierra Leone |
| 1990s | 3 years | 4.6 years | 1.6 years | Sierra Leone |
| 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 theoretical duration of lower secondary education, El Salvador or Sierra Leone?
- El Salvador, at 3 years against 3 years in Sierra Leone as of 2025.
- What is the difference in theoretical duration of lower secondary education between El Salvador and Sierra Leone?
- 0 years, with El Salvador ahead.
- How many years of comparable data are there for El Salvador and Sierra Leone?
- 56 years are reported by both, from 1970 to 2025.
- How do El Salvador and Sierra Leone rank globally for theoretical duration of lower secondary education?
- El Salvador ranks 91st and Sierra Leone 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