Brunei vs Bulgaria: Theoretical duration of upper secondary education (years)
Brunei
5 years
in 2025
Bulgaria
5 years
in 2025
Brunei rank
1st
Bulgaria rank
1st
Theoretical duration of upper secondary education (years) over time
- Brunei
- Bulgaria
How they compare
Brunei currently reports 5 years against 5 years in Bulgaria, a difference of 0 years.
The two have swapped places 2 times across 56 shared years of data; in 1970 it was Bulgaria ahead.
Brunei ranks 1st and Bulgaria ranks 1st of 221 countries.
Bulgaria has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Brunei | Bulgaria | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2 years | 3 years | 1 years | Bulgaria |
| 1980s | 2 years | 3 years | 1 years | Bulgaria |
| 1990s | 2.4 years | 3.2 years | 0.8 years | Bulgaria |
| 2000s | 4 years | 5 years | 1 years | Bulgaria |
| 2010s | 5 years | 5 years | 0 years | — |
| 2020s | 5 years | 5 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education, Brunei or Bulgaria?
- Brunei, at 5 years against 5 years in Bulgaria as of 2025.
- What is the difference in theoretical duration of upper secondary education between Brunei and Bulgaria?
- 0 years, with Brunei ahead.
- How many years of comparable data are there for Brunei and Bulgaria?
- 56 years are reported by both, from 1970 to 2025.
- How do Brunei and Bulgaria rank globally for theoretical duration of upper secondary education?
- Brunei ranks 1st and Bulgaria ranks 1st of 221 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