How many years of comparable data are there for Iran, Islamic Republic of and Qatar?

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 primary schooling, age 75+, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Qatar: Barro-Lee: Average years of primary schooling, age 75+, total

Iran, Islamic Republic of

2.47

in 2010

Qatar

2.56

in 2010

Iran, Islamic Republic of rank

81st

Qatar rank

78th

Barro-Lee: Average years of primary schooling, age 75+, total over time

Iran, Islamic Republic of
Qatar

How they compare

Qatar currently reports 2.56 against 2.47 in Iran, Islamic Republic of, a difference of 0.09.

The two have swapped places 2 times across 11 shared years of data; in 1960 it was Qatar ahead.

Iran, Islamic Republic of ranks 81st and Qatar ranks 78th of 144 countries.

Across the 6 decades both report, Iran, Islamic Republic of averaged higher in 2 and Qatar in 4.

Head to head by decade

Decade	Iran, Islamic Republic of	Qatar	Difference	Ahead
1960s	0.07	0.335	0.265	Qatar
1970s	0.08	0.415	0.335	Qatar
1980s	0.165	0.48	0.315	Qatar
1990s	0.935	0.585	0.35	Iran, Islamic Republic of
2000s	1.53	0.805	0.73	Iran, Islamic Republic of
2010s	2.47	2.56	0.09	Qatar

Averages of every year both report within each decade.

Frequently asked questions

Which has higher barro-lee: average years of primary schooling, age 75+, total, Iran, Islamic Republic of or Qatar?: Qatar, at 2.56 against 2.47 in Iran, Islamic Republic of as of 2010.
What is the difference in barro-lee: average years of primary schooling, age 75+, total between Iran, Islamic Republic of and Qatar?: 0.09, with Qatar ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Qatar?: 11 years are reported by both, from 1960 to 2010.
How do Iran, Islamic Republic of and Qatar rank globally for barro-lee: average years of primary schooling, age 75+, total?: Iran, Islamic Republic of ranks 81st and Qatar ranks 78th 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 primary schooling, age 75+, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Qatar: Barro-Lee: Average years of primary schooling, age 75+, total. Statizoid, drawing on Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/. Retrieved 18 August 2026, from https://reference.statizoid.com/compare/barro-lee-average-years-of-primary-schooling-age-75-total/iran-islamic-rep/qatar/

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<a href="https://reference.statizoid.com/compare/barro-lee-average-years-of-primary-schooling-age-75-total/iran-islamic-rep/qatar/">Iran, Islamic Republic of vs Qatar: Barro-Lee: Average years of primary schooling, age 75+, total</a> — Statizoid

About this data

Indicator: Barro-Lee: Average years of primary schooling, age 75+, 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: 07 August 2026

Average years of primary schooling, 75+, total is the average years of primary education completed among people over age 75.