Congo vs Sri Lanka: Theoretical duration of lower secondary education
Congo
4 years
in 2025
Sri Lanka
4 years
in 2025
Congo rank
17th
Sri Lanka rank
17th
Theoretical duration of lower secondary education over time
- Congo
- Sri Lanka
How they compare
Congo currently reports 4 years against 4 years in Sri Lanka, a difference of 0 years.
Across all 56 years both countries report, Sri Lanka has been ahead every year.
Congo ranks 17th and Sri Lanka ranks 17th of 215 countries.
Sri Lanka has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Congo | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 4 years | 5 years | 1 years | Sri Lanka |
| 1980s | 4 years | 5 years | 1 years | Sri Lanka |
| 1990s | 4 years | 4.8 years | 0.8 years | Sri Lanka |
| 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, Congo or Sri Lanka?
- Congo, at 4 years against 4 years in Sri Lanka as of 2025.
- What is the difference in theoretical duration of lower secondary education between Congo and Sri Lanka?
- 0 years, with Congo ahead.
- How many years of comparable data are there for Congo and Sri Lanka?
- 56 years are reported by both, from 1970 to 2025.
- How do Congo and Sri Lanka rank globally for theoretical duration of lower secondary education?
- Congo ranks 17th and Sri Lanka 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