Poland vs Tonga: Theoretical duration of post-secondary non-tertiary education

Poland
2 years
in 2020
Tonga
2 years
in 2019
Poland rank
15th
Tonga rank
15th

Theoretical duration of post-secondary non-tertiary education over time

  • Poland
  • Tonga
11.522.53197019952020

How they compare

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

The two have swapped places 1 time across 22 shared years of data; in 1998 it was Poland ahead.

Poland ranks 15th and Tonga ranks 15th of 168 countries.

Poland has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade Poland Tonga Difference Ahead
1990s 3 years 1 years 2 years Poland
2000s 2.2 years 1 years 1.2 years Poland
2010s 2 years 1.8 years 0.2 years Poland

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of post-secondary non-tertiary education, Poland or Tonga?
Poland, at 2 years against 2 years in Tonga as of 2020.
What is the difference in theoretical duration of post-secondary non-tertiary education between Poland and Tonga?
0 years, with Poland ahead.
How many years of comparable data are there for Poland and Tonga?
22 years are reported by both, from 1998 to 2019.
How do Poland and Tonga rank globally for theoretical duration of post-secondary non-tertiary education?
Poland ranks 15th and Tonga ranks 15th of 168 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Theoretical duration of post-secondary non-tertiary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Poland vs Tonga: Theoretical duration of post-secondary non-tertiary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 29 August 2026, from https://education.statizoid.com/compare/theoretical-duration-of-post-secondary-non-tertiary-education-years/poland/tonga/

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About this data

Indicator
Theoretical duration of post-secondary non-tertiary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
168 places, 3,181 data points, 1970–2020
Last refreshed

Number of grades (years) in post-secondary education.