Niue vs Sao Tome and Principe: Theoretical duration of upper secondary education (years)
Niue
3 years
in 2025
Sao Tome and Principe
3 years
in 2025
Niue rank
52nd
Sao Tome and Principe rank
52nd
Theoretical duration of upper secondary education (years) over time
- Niue
- Sao Tome and Principe
How they compare
Niue currently reports 3 years against 3 years in Sao Tome and Principe, a difference of 0 years.
The two have swapped places 4 times across 56 shared years of data; in 1970 it was Sao Tome and Principe ahead.
Niue ranks 52nd and Sao Tome and Principe ranks 52nd of 221 countries.
Across the 6 decades both report, Niue averaged higher in 3 and Sao Tome and Principe in 2.
Head to head by decade
| Decade | Niue | Sao Tome and Principe | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2 years | 3 years | 1 years | Sao Tome and Principe |
| 1980s | 2 years | 2.8 years | 0.8 years | Sao Tome and Principe |
| 1990s | 2.2 years | 2.1 years | 0.1 years | Niue |
| 2000s | 3 years | 2.6 years | 0.4 years | Niue |
| 2010s | 3 years | 2.9 years | 0.1 years | Niue |
| 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 upper secondary education, Niue or Sao Tome and Principe?
- Niue, at 3 years against 3 years in Sao Tome and Principe as of 2025.
- What is the difference in theoretical duration of upper secondary education between Niue and Sao Tome and Principe?
- 0 years, with Niue ahead.
- How many years of comparable data are there for Niue and Sao Tome and Principe?
- 56 years are reported by both, from 1970 to 2025.
- How do Niue and Sao Tome and Principe rank globally for theoretical duration of upper secondary education?
- Niue ranks 52nd and Sao Tome and Principe ranks 52nd of 221 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