Chad vs Hong Kong, China: Theoretical duration of upper secondary education
Chad
3 years
in 2025
Hong Kong, China
3 years
in 2025
Chad rank
52nd
Hong Kong, China rank
52nd
Theoretical duration of upper secondary education over time
- Chad
- Hong Kong, China
How they compare
Chad currently reports 3 years against 3 years in Hong Kong, China, 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 52nd and Hong Kong, China ranks 52nd of 215 countries.
Across the 6 decades both report, Chad averaged higher in 3 and Hong Kong, China in 2.
Head to head by decade
| Decade | Chad | Hong Kong, China | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 2 years | 1 years | Chad |
| 1980s | 3 years | 2 years | 1 years | Chad |
| 1990s | 3 years | 2.4 years | 0.6 years | Chad |
| 2000s | 3 years | 4 years | 1 years | Hong Kong, China |
| 2010s | 3 years | 3.2 years | 0.2 years | Hong Kong, China |
| 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, Chad or Hong Kong, China?
- Chad, at 3 years against 3 years in Hong Kong, China as of 2025.
- What is the difference in theoretical duration of upper secondary education between Chad and Hong Kong, China?
- 0 years, with Chad ahead.
- How many years of comparable data are there for Chad and Hong Kong, China?
- 56 years are reported by both, from 1970 to 2025.
- How do Chad and Hong Kong, China rank globally for theoretical duration of upper secondary education?
- Chad ranks 52nd and Hong Kong, China ranks 52nd of 215 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