Sierra Leone vs Türkiye: Theoretical duration of upper secondary education
Sierra Leone
4 years
in 2025
Türkiye
4 years
in 2025
Sierra Leone rank
6th
Türkiye rank
6th
Theoretical duration of upper secondary education over time
- Sierra Leone
- Türkiye
How they compare
Sierra Leone currently reports 4 years against 4 years in Türkiye, a difference of 0 years.
Across all 56 years both countries report, Türkiye has been ahead every year.
Sierra Leone ranks 6th and Türkiye ranks 6th of 215 countries.
Türkiye has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Sierra Leone | Türkiye | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2 years | 3 years | 1 years | Türkiye |
| 1980s | 2 years | 3 years | 1 years | Türkiye |
| 1990s | 2.3 years | 3 years | 0.7 years | Türkiye |
| 2000s | 3 years | 3.1 years | 0.1 years | Türkiye |
| 2010s | 3.7 years | 4 years | 0.3 years | Türkiye |
| 2020s | 4 years | 4 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education, Sierra Leone or Türkiye?
- Sierra Leone, at 4 years against 4 years in Türkiye as of 2025.
- What is the difference in theoretical duration of upper secondary education between Sierra Leone and Türkiye?
- 0 years, with Sierra Leone ahead.
- How many years of comparable data are there for Sierra Leone and Türkiye?
- 56 years are reported by both, from 1970 to 2025.
- How do Sierra Leone and Türkiye rank globally for theoretical duration of upper secondary education?
- Sierra Leone ranks 6th and Türkiye ranks 6th 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