How many years of comparable data are there for Tonga and Viet Nam?

11 years are reported by both, from 1960 to 2010.

Where does this data come from?

Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/, published as Barro-Lee: Average years of tertiary schooling, age 30-34, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Tonga vs Viet Nam: Barro-Lee: Average years of tertiary schooling, age 30-34, total

Tonga

0.21

in 2010

Viet Nam

0.26

in 2010

Tonga rank

97th

Viet Nam rank

94th

Barro-Lee: Average years of tertiary schooling, age 30-34, total over time

Tonga
Viet Nam

How they compare

Viet Nam currently reports 0.26 against 0.21 in Tonga, a difference of 0.05.

That makes Viet Nam's figure about 1.2 times Tonga's.

The two have swapped places 1 time across 11 shared years of data; in 1960 it was Tonga ahead.

Tonga ranks 97th and Viet Nam ranks 94th of 144 countries.

Across the 6 decades both report, Tonga averaged higher in 5 and Viet Nam in 1.

Head to head by decade

Decade	Tonga	Viet Nam	Difference	Ahead
1960s	0.07	0.01	0.06	Tonga
1970s	0.07	0.06	0.01	Tonga
1980s	0.105	0.08	0.025	Tonga
1990s	0.255	0.1	0.155	Tonga
2000s	0.4	0.145	0.255	Tonga
2010s	0.21	0.26	0.05	Viet Nam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher barro-lee: average years of tertiary schooling, age 30-34, total, Tonga or Viet Nam?: Viet Nam, at 0.26 against 0.21 in Tonga as of 2010.
What is the difference in barro-lee: average years of tertiary schooling, age 30-34, total between Tonga and Viet Nam?: 0.05, with Viet Nam ahead.
How many years of comparable data are there for Tonga and Viet Nam?: 11 years are reported by both, from 1960 to 2010.
How do Tonga and Viet Nam rank globally for barro-lee: average years of tertiary schooling, age 30-34, total?: Tonga ranks 97th and Viet Nam ranks 94th of 144 countries.
Where does this data come from?: Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/, published as Barro-Lee: Average years of tertiary schooling, age 30-34, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Tonga vs Viet Nam: Barro-Lee: Average years of tertiary schooling, age 30-34, total. Statizoid, drawing on Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/. Retrieved 04 September 2026, from https://education.statizoid.com/compare/barro-lee-average-years-of-tertiary-schooling-age-30-34-total/tonga/viet-nam/

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<a href="https://education.statizoid.com/compare/barro-lee-average-years-of-tertiary-schooling-age-30-34-total/tonga/viet-nam/">Tonga vs Viet Nam: Barro-Lee: Average years of tertiary schooling, age 30-34, total</a> — Statizoid

About this data

Indicator: Barro-Lee: Average years of tertiary schooling, age 30-34, total
Source: Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 144 places, 1,584 data points, 1960–2010
Last refreshed: 04 September 2026

Average years of tertiary schooling, 30-34, total is the average years of tertiary education completed among people age 30-34.