Niue vs Sierra Leone: Theoretical duration of secondary education (years)
Niue
7 years
in 2025
Sierra Leone
7 years
in 2025
Niue rank
26th
Sierra Leone rank
26th
Theoretical duration of secondary education (years) over time
- Niue
- Sierra Leone
How they compare
Niue currently reports 7 years against 7 years in Sierra Leone, a difference of 0 years.
The two have swapped places 2 times across 56 shared years of data; in 1970 it was Sierra Leone ahead.
Niue ranks 26th and Sierra Leone ranks 26th of 221 countries.
Across the 6 decades both report, Niue averaged higher in 2 and Sierra Leone in 3.
Head to head by decade
| Decade | Niue | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 6 years | 7 years | 1 years | Sierra Leone |
| 1980s | 6 years | 7 years | 1 years | Sierra Leone |
| 1990s | 6.2 years | 6.9 years | 0.7 years | Sierra Leone |
| 2000s | 7 years | 6 years | 1 years | Niue |
| 2010s | 7 years | 6.7 years | 0.3 years | Niue |
| 2020s | 7 years | 7 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of secondary education, Niue or Sierra Leone?
- Niue, at 7 years against 7 years in Sierra Leone as of 2025.
- What is the difference in theoretical duration of secondary education between Niue and Sierra Leone?
- 0 years, with Niue ahead.
- How many years of comparable data are there for Niue and Sierra Leone?
- 56 years are reported by both, from 1970 to 2025.
- How do Niue and Sierra Leone rank globally for theoretical duration of secondary education?
- Niue ranks 26th and Sierra Leone ranks 26th of 221 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of 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