How many years of comparable data are there for Tonga and Venezuela, Bolivarian Republic of?

51 years are reported by both, from 1970 to 2020.

Where does this data come from?

UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Tonga vs Venezuela, Bolivarian Republic of: Theoretical duration of upper secondary education

Tonga

2 years

in 2020

Venezuela, Bolivarian Republic of

2 years

in 2020

Tonga rank

156th

Venezuela, Bolivarian Republic of rank

156th

Theoretical duration of upper secondary education over time

Tonga
Venezuela, Bolivarian Republic of

How they compare

Tonga currently reports 2 years against 2 years in Venezuela, Bolivarian Republic of, a difference of 0 years.

The two have swapped places 2 times across 51 shared years of data; in 1970 it was Venezuela, Bolivarian Republic of ahead.

Tonga ranks 156th and Venezuela, Bolivarian Republic of ranks 156th of 209 countries.

Tonga has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Tonga	Venezuela, Bolivarian Republic of	Difference	Ahead
1970s	2 years	2 years	0 years	—
1980s	2.6 years	2 years	0.6 years	Tonga
1990s	2.8 years	2 years	0.8 years	Tonga
2000s	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 upper secondary education, Tonga or Venezuela, Bolivarian Republic of?: Tonga, at 2 years against 2 years in Venezuela, Bolivarian Republic of as of 2020.
What is the difference in theoretical duration of upper secondary education between Tonga and Venezuela, Bolivarian Republic of?: 0 years, with Tonga ahead.
How many years of comparable data are there for Tonga and Venezuela, Bolivarian Republic of?: 51 years are reported by both, from 1970 to 2020.
How do Tonga and Venezuela, Bolivarian Republic of rank globally for theoretical duration of upper secondary education?: Tonga ranks 156th and Venezuela, Bolivarian Republic of ranks 156th of 209 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Tonga vs Venezuela, Bolivarian Republic of: Theoretical duration of upper secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 30 August 2026, from https://education.statizoid.com/compare/theoretical-duration-of-upper-secondary-education-years/tonga/venezuela-rb/

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About this data

Indicator: Theoretical duration of upper secondary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 209 places, 10,366 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in upper secondary education.