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

0 years, with Sao Tome and Principe ahead.

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

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 Ukraine: Theoretical duration of pre-primary education

Sao Tome and Principe

3 years

in 2019

Ukraine

3 years

in 2019

Sao Tome and Principe rank

21st

Ukraine rank

21st

Theoretical duration of pre-primary education over time

Sao Tome and Principe
Ukraine

How they compare

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

The two have swapped places 2 times across 50 shared years of data; in 1970 it was Ukraine ahead.

Sao Tome and Principe ranks 21st and Ukraine 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	Ukraine	Difference	Ahead
1970s	4 years	4 years	0 years	—
1980s	4 years	4 years	0 years	—
1990s	4 years	4 years	0 years	—
2000s	3.6 years	3.3 years	0.3 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 Ukraine?: Sao Tome and Principe, at 3 years against 3 years in Ukraine as of 2019.
What is the difference in theoretical duration of pre-primary education between Sao Tome and Principe and Ukraine?: 0 years, with Sao Tome and Principe ahead.
How many years of comparable data are there for Sao Tome and Principe and Ukraine?: 50 years are reported by both, from 1970 to 2019.
How do Sao Tome and Principe and Ukraine rank globally for theoretical duration of pre-primary education?: Sao Tome and Principe ranks 21st and Ukraine 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.

Individual pages

Share, cite or embed this page

Cite this page

Sao Tome and Principe vs Ukraine: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 03 September 2026, from https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/sao-tome-and-principe/ukraine/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (World Bank Open Data); please keep the attribution.

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