Chad vs Nauru: Theoretical duration of lower secondary education (years)
Chad
4 years
in 2025
Nauru
4 years
in 2025
Chad rank
18th
Nauru rank
18th
Theoretical duration of lower secondary education (years) over time
- Chad
- Nauru
How they compare
Chad currently reports 4 years against 4 years in Nauru, a difference of 0 years.
The two have swapped places 1 time across 56 shared years of data; in 1970 it was Chad ahead.
Chad ranks 18th and Nauru ranks 18th of 221 countries.
Chad has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Chad | Nauru | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 4 years | 3 years | 1 years | Chad |
| 1980s | 4 years | 3 years | 1 years | Chad |
| 1990s | 4 years | 3.2 years | 0.8 years | Chad |
| 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, Chad or Nauru?
- Chad, at 4 years against 4 years in Nauru as of 2025.
- What is the difference in theoretical duration of lower secondary education between Chad and Nauru?
- 0 years, with Chad ahead.
- How many years of comparable data are there for Chad and Nauru?
- 56 years are reported by both, from 1970 to 2025.
- How do Chad and Nauru rank globally for theoretical duration of lower secondary education?
- Chad 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