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

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: Percentage of population age 75+ with no education. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Zambia: Barro-Lee: Percentage of population age 75+ with no education

Iran, Islamic Republic of

56.3%

in 2010

Zambia

56.6%

in 2010

Iran, Islamic Republic of rank

50th

Zambia rank

49th

Barro-Lee: Percentage of population age 75+ with no education over time

Iran, Islamic Republic of
Zambia

How they compare

Zambia currently reports 56.6% against 56.3% in Iran, Islamic Republic of, a difference of 0.3%.

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

Iran, Islamic Republic of ranks 50th and Zambia ranks 49th of 144 countries.

Across the 6 decades both report, Iran, Islamic Republic of averaged higher in 5 and Zambia in 1.

Head to head by decade

Decade	Iran, Islamic Republic of	Zambia	Difference	Ahead
1960s	98.7%	79.6%	19.1%	Iran, Islamic Republic of
1970s	98.5%	80.4%	18.1%	Iran, Islamic Republic of
1980s	96.9%	78.1%	18.8%	Iran, Islamic Republic of
1990s	82.4%	58.8%	23.6%	Iran, Islamic Republic of
2000s	71.4%	56.8%	14.7%	Iran, Islamic Republic of
2010s	56.3%	56.6%	0.3%	Zambia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher barro-lee: percentage of population age 75+ with no education, Iran, Islamic Republic of or Zambia?: Zambia, at 56.6% against 56.3% in Iran, Islamic Republic of as of 2010.
What is the difference in barro-lee: percentage of population age 75+ with no education between Iran, Islamic Republic of and Zambia?: 0.3%, with Zambia ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Zambia?: 11 years are reported by both, from 1960 to 2010.
How do Iran, Islamic Republic of and Zambia rank globally for barro-lee: percentage of population age 75+ with no education?: Iran, Islamic Republic of ranks 50th and Zambia ranks 49th of 144 countries.
Where does this data come from?: Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/, published as Barro-Lee: Percentage of population age 75+ with no education. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Zambia: Barro-Lee: Percentage of population age 75+ with no education. Statizoid, drawing on Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/. Retrieved 04 September 2026, from https://reference.statizoid.com/compare/barro-lee-percentage-of-population-age-75-with-no-education/iran-islamic-rep/zambia/

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About this data

Indicator: Barro-Lee: Percentage of population age 75+ with no education
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: 21 August 2026

Percentage of population age 75+ with no education