How many years of comparable data are there for Curacao and Sao Tome and Principe?

27 years are reported by both, from 1999 to 2025.

Where does this data come from?

Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Lower secondary school starting age (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Curacao vs Sao Tome and Principe: Lower secondary school starting age

Curacao

12 years

in 2025

Sao Tome and Principe

12 years

in 2025

Curacao rank

30th

Sao Tome and Principe rank

30th

Lower secondary school starting age over time

Curacao
Sao Tome and Principe

How they compare

Curacao currently reports 12 years against 12 years in Sao Tome and Principe, a difference of 0 years.

Across all 27 years both countries report, Sao Tome and Principe has been ahead every year.

Curacao ranks 30th and Sao Tome and Principe ranks 30th of 209 countries.

Sao Tome and Principe has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Curacao	Sao Tome and Principe	Difference	Ahead
1990s	12 years	13 years	1 years	Sao Tome and Principe
2000s	12 years	12.6 years	0.6 years	Sao Tome and Principe
2010s	12 years	12 years	0 years	—
2020s	12 years	12 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher lower secondary school starting age, Curacao or Sao Tome and Principe?: Curacao, at 12 years against 12 years in Sao Tome and Principe as of 2025.
What is the difference in lower secondary school starting age between Curacao and Sao Tome and Principe?: 0 years, with Curacao ahead.
How many years of comparable data are there for Curacao and Sao Tome and Principe?: 27 years are reported by both, from 1999 to 2025.
How do Curacao and Sao Tome and Principe rank globally for lower secondary school starting age?: Curacao ranks 30th and Sao Tome and Principe ranks 30th of 209 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Lower secondary school starting age (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Curacao vs Sao Tome and Principe: Lower secondary school starting age. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 02 September 2026, from https://education.statizoid.com/compare/lower-secondary-school-starting-age-years/curacao/sao-tome-and-principe/

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<a href="https://education.statizoid.com/compare/lower-secondary-school-starting-age-years/curacao/sao-tome-and-principe/">Curacao vs Sao Tome and Principe: Lower secondary school starting age</a> — Statizoid

About this data

Indicator: Lower secondary school starting age (years)
Unit: years
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 209 places, 11,411 data points, 1970–2025
Last refreshed: 20 August 2026

Lower secondary school starting age is the age at which students would enter lower secondary education, assuming they had started at the official entrance age for the lowest level of education, had studied full-time throughout and had progressed through the system without repeating or skipping a grade.