Bulgaria vs Samoa: Theoretical duration of upper secondary education
Bulgaria
5 years
in 2025
Samoa
5 years
in 2025
Bulgaria rank
1st
Samoa rank
1st
Theoretical duration of upper secondary education over time
- Bulgaria
- Samoa
How they compare
Bulgaria currently reports 5 years against 5 years in Samoa, a difference of 0 years.
Across all 56 years both countries report, Samoa has been ahead every year.
Bulgaria ranks 1st and Samoa ranks 1st of 215 countries.
Samoa has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Bulgaria | Samoa | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 5 years | 2 years | Samoa |
| 1980s | 3 years | 5 years | 2 years | Samoa |
| 1990s | 3.2 years | 5 years | 1.8 years | Samoa |
| 2000s | 5 years | 5 years | 0 years | — |
| 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, Bulgaria or Samoa?
- Bulgaria, at 5 years against 5 years in Samoa as of 2025.
- What is the difference in theoretical duration of upper secondary education between Bulgaria and Samoa?
- 0 years, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Samoa?
- 56 years are reported by both, from 1970 to 2025.
- How do Bulgaria and Samoa rank globally for theoretical duration of upper secondary education?
- Bulgaria ranks 1st and Samoa ranks 1st 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