Guinea-Bissau vs Nigeria: Theoretical duration of secondary education
Guinea-Bissau
6 years
in 2025
Nigeria
6 years
in 2025
Guinea-Bissau rank
96th
Nigeria rank
96th
Theoretical duration of secondary education over time
- Guinea-Bissau
- Nigeria
How they compare
Guinea-Bissau currently reports 6 years against 6 years in Nigeria, a difference of 0 years.
Across all 56 years both countries report, Nigeria has been ahead every year.
Guinea-Bissau ranks 96th and Nigeria ranks 96th of 215 countries.
Nigeria has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Guinea-Bissau | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 5 years | 7 years | 2 years | Nigeria |
| 1980s | 5 years | 6.6 years | 1.6 years | Nigeria |
| 1990s | 5 years | 6 years | 1 years | Nigeria |
| 2000s | 5 years | 6 years | 1 years | Nigeria |
| 2010s | 5.9 years | 6 years | 0.1 years | Nigeria |
| 2020s | 6 years | 6 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of secondary education, Guinea-Bissau or Nigeria?
- Guinea-Bissau, at 6 years against 6 years in Nigeria as of 2025.
- What is the difference in theoretical duration of secondary education between Guinea-Bissau and Nigeria?
- 0 years, with Guinea-Bissau ahead.
- How many years of comparable data are there for Guinea-Bissau and Nigeria?
- 56 years are reported by both, from 1970 to 2025.
- How do Guinea-Bissau and Nigeria rank globally for theoretical duration of secondary education?
- Guinea-Bissau ranks 96th and Nigeria ranks 96th of 215 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