American Samoa vs Chad: Theoretical duration of lower secondary education
American Samoa
4 years
in 2025
Chad
4 years
in 2025
American Samoa rank
17th
Chad rank
17th
Theoretical duration of lower secondary education over time
- American Samoa
- Chad
How they compare
American Samoa currently reports 4 years against 4 years in Chad, a difference of 0 years.
Across all 20 years both countries report, Chad has been ahead every year.
American Samoa ranks 17th and Chad ranks 17th of 215 countries.
Chad has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | American Samoa | Chad | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 2 years | 4 years | 2 years | Chad |
| 1990s | 2.4 years | 4 years | 1.6 years | Chad |
| 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, American Samoa or Chad?
- American Samoa, at 4 years against 4 years in Chad as of 2025.
- What is the difference in theoretical duration of lower secondary education between American Samoa and Chad?
- 0 years, with American Samoa ahead.
- How many years of comparable data are there for American Samoa and Chad?
- 20 years are reported by both, from 1989 to 2025.
- How do American Samoa and Chad rank globally for theoretical duration of lower secondary education?
- American Samoa ranks 17th and Chad ranks 17th of 215 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