Bulgaria vs Cook Islands: Theoretical duration of pre-primary education
Bulgaria
4 years
in 2025
Cook Islands
2 years
in 2025
Bulgaria rank
1st
Cook Islands rank
1st
Theoretical duration of pre-primary education over time
- Bulgaria
- Cook Islands
How they compare
Bulgaria currently reports 4 years against 2 years in Cook Islands, a difference of 2 years.
That makes Bulgaria's figure about 2.0 times Cook Islands's.
Across all 56 years both countries report, Bulgaria has been ahead every year.
Bulgaria ranks 1st and Cook Islands ranks 1st of 217 countries.
Bulgaria has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Bulgaria | Cook Islands | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 4 years | 1 years | 3 years | Bulgaria |
| 1980s | 4 years | 1 years | 3 years | Bulgaria |
| 1990s | 4 years | 1.2 years | 2.8 years | Bulgaria |
| 2000s | 4 years | 2 years | 2 years | Bulgaria |
| 2010s | 4 years | 2 years | 2 years | Bulgaria |
| 2020s | 4 years | 2 years | 2 years | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of pre-primary education, Bulgaria or Cook Islands?
- Bulgaria, at 4 years against 2 years in Cook Islands as of 2025.
- What is the difference in theoretical duration of pre-primary education between Bulgaria and Cook Islands?
- 2 years, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Cook Islands?
- 56 years are reported by both, from 1970 to 2025.
- How do Bulgaria and Cook Islands rank globally for theoretical duration of pre-primary education?
- Bulgaria ranks 1st and Cook Islands ranks 1st of 217 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of pre-primary 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