What is the difference in theoretical duration of pre-primary education between Sao Tome and Principe and Uganda?

0 years, with Sao Tome and Principe ahead.

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

50 years are reported by both, from 1970 to 2019.

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.

Sao Tome and Principe vs Uganda: Theoretical duration of pre-primary education

Sao Tome and Principe

3 years

in 2019

Uganda

3 years

in 2019

Sao Tome and Principe rank

21st

Uganda rank

21st

Theoretical duration of pre-primary education over time

Sao Tome and Principe
Uganda

How they compare

Sao Tome and Principe currently reports 3 years against 3 years in Uganda, a difference of 0 years.

The two have swapped places 1 time across 50 shared years of data; in 1970 it was Sao Tome and Principe ahead.

Sao Tome and Principe ranks 21st and Uganda ranks 21st of 210 countries.

Sao Tome and Principe has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Sao Tome and Principe	Uganda	Difference	Ahead
1970s	4 years	2 years	2 years	Sao Tome and Principe
1980s	4 years	2 years	2 years	Sao Tome and Principe
1990s	4 years	2.2 years	1.8 years	Sao Tome and Principe
2000s	3.6 years	3 years	0.6 years	Sao Tome and Principe
2010s	3 years	3 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Sao Tome and Principe or Uganda?: Sao Tome and Principe, at 3 years against 3 years in Uganda as of 2019.
What is the difference in theoretical duration of pre-primary education between Sao Tome and Principe and Uganda?: 0 years, with Sao Tome and Principe ahead.
How many years of comparable data are there for Sao Tome and Principe and Uganda?: 50 years are reported by both, from 1970 to 2019.
How do Sao Tome and Principe and Uganda rank globally for theoretical duration of pre-primary education?: Sao Tome and Principe ranks 21st and Uganda ranks 21st of 210 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.

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Sao Tome and Principe vs Uganda: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 02 September 2026, from https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/sao-tome-and-principe/uganda/

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<a href="https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/sao-tome-and-principe/uganda/">Sao Tome and Principe vs Uganda: Theoretical duration of pre-primary education</a> — Statizoid

About this data

Indicator: Theoretical duration of pre-primary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 210 places, 10,271 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in pre-primary education.