Gibraltar vs Sierra Leone: Theoretical duration of upper secondary education
Gibraltar
4 years
in 2025
Sierra Leone
4 years
in 2025
Gibraltar rank
6th
Sierra Leone rank
6th
Theoretical duration of upper secondary education over time
- Gibraltar
- Sierra Leone
How they compare
Gibraltar currently reports 4 years against 4 years in Sierra Leone, a difference of 0 years.
Across all 56 years both countries report, Sierra Leone has been ahead every year.
Gibraltar ranks 6th and Sierra Leone ranks 6th of 215 countries.
Sierra Leone has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Gibraltar | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2 years | 2 years | 0 years | — |
| 1980s | 2 years | 2 years | 0 years | — |
| 1990s | 2 years | 2.3 years | 0.3 years | Sierra Leone |
| 2000s | 2 years | 3 years | 1 years | Sierra Leone |
| 2010s | 2 years | 3.7 years | 1.7 years | Sierra Leone |
| 2020s | 3.33 years | 4 years | 0.6667 years | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education, Gibraltar or Sierra Leone?
- Gibraltar, at 4 years against 4 years in Sierra Leone as of 2025.
- What is the difference in theoretical duration of upper secondary education between Gibraltar and Sierra Leone?
- 0 years, with Gibraltar ahead.
- How many years of comparable data are there for Gibraltar and Sierra Leone?
- 56 years are reported by both, from 1970 to 2025.
- How do Gibraltar and Sierra Leone rank globally for theoretical duration of upper secondary education?
- Gibraltar ranks 6th and Sierra Leone 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