Guinea vs Nauru: Theoretical duration of lower secondary education (years)
Guinea
4 years
in 2025
Nauru
4 years
in 2025
Guinea rank
18th
Nauru rank
18th
Theoretical duration of lower secondary education (years) over time
- Guinea
- Nauru
How they compare
Guinea currently reports 4 years against 4 years in Nauru, a difference of 0 years.
Across all 56 years both countries report, Nauru has been ahead every year.
Guinea ranks 18th and Nauru ranks 18th of 221 countries.
Head to head by decade
| Decade | Guinea | Nauru | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 3 years | 0 years | — |
| 1980s | 3 years | 3 years | 0 years | — |
| 1990s | 3.2 years | 3.2 years | 0 years | — |
| 2000s | 4 years | 4 years | 0 years | — |
| 2010s | 4 years | 4 years | 0 years | — |
| 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 lower secondary education, Guinea or Nauru?
- Guinea, at 4 years against 4 years in Nauru as of 2025.
- What is the difference in theoretical duration of lower secondary education between Guinea and Nauru?
- 0 years, with Guinea ahead.
- How many years of comparable data are there for Guinea and Nauru?
- 56 years are reported by both, from 1970 to 2025.
- How do Guinea and Nauru rank globally for theoretical duration of lower secondary education?
- Guinea ranks 18th and Nauru ranks 18th 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