San Marino vs Sao Tome and Principe: Duration of pre-primary education
San Marino
3 years
in 2025
Sao Tome and Principe
3 years
in 2025
San Marino rank
27th
Sao Tome and Principe rank
27th
Duration of pre-primary education over time
- San Marino
- Sao Tome and Principe
How they compare
San Marino currently reports 3 years against 3 years in Sao Tome and Principe, a difference of 0 years.
Across all 56 years both countries report, Sao Tome and Principe has been ahead every year.
San Marino ranks 27th and Sao Tome and Principe ranks 27th of 223 countries.
Sao Tome and Principe has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | San Marino | Sao Tome and Principe | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 4 years | 1 years | Sao Tome and Principe |
| 1980s | 3 years | 4 years | 1 years | Sao Tome and Principe |
| 1990s | 3 years | 4 years | 1 years | Sao Tome and Principe |
| 2000s | 3 years | 3.6 years | 0.6 years | Sao Tome and Principe |
| 2010s | 3 years | 3 years | 0 years | — |
| 2020s | 3 years | 3 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher duration of pre-primary education, San Marino or Sao Tome and Principe?
- San Marino, at 3 years against 3 years in Sao Tome and Principe as of 2025.
- What is the difference in duration of pre-primary education between San Marino and Sao Tome and Principe?
- 0 years, with San Marino ahead.
- How many years of comparable data are there for San Marino and Sao Tome and Principe?
- 56 years are reported by both, from 1970 to 2025.
- How do San Marino and Sao Tome and Principe rank globally for duration of pre-primary education?
- San Marino ranks 27th and Sao Tome and Principe ranks 27th of 223 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Duration of pre-primary education. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Average number of years that a child is expected to spend in pre-primary education, defined by country's official educational regulations or laws.