Tonga vs Western Sahara: Theoretical duration of pre-primary education

Tonga
2 years
in 2025
Western Sahara
2 years
in 2025
Tonga rank
146th
Western Sahara rank
146th

Theoretical duration of pre-primary education over time

  • Tonga
  • Western Sahara
0123197019972025

How they compare

Tonga currently reports 2 years against 2 years in Western Sahara, a difference of 0 years.

The two have swapped places 1 time across 26 shared years of data; in 1981 it was Tonga ahead.

Tonga ranks 146th and Western Sahara ranks 146th of 217 countries.

Tonga has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade Tonga Western Sahara Difference Ahead
1980s 2.33 years 2 years 0.3333 years Tonga
1990s 2 years 2 years 0 years
2010s 2 years 2 years 0 years
2020s 2 years 2 years 0 years

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Tonga or Western Sahara?
Tonga, at 2 years against 2 years in Western Sahara as of 2025.
What is the difference in theoretical duration of pre-primary education between Tonga and Western Sahara?
0 years, with Tonga ahead.
How many years of comparable data are there for Tonga and Western Sahara?
26 years are reported by both, from 1981 to 2025.
How do Tonga and Western Sahara rank globally for theoretical duration of pre-primary education?
Tonga ranks 146th and Western Sahara ranks 146th 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.

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Tonga vs Western Sahara: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 02 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years-2/tonga/western-sahara/

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About this data

Indicator
Theoretical duration of pre-primary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
223 places, 12,020 data points, 1970–2025
Last refreshed

February 2026 Data Release