How many years of comparable data are there for Portugal 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: Average years of total schooling, age 75+, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Portugal vs Zambia: Barro-Lee: Average years of total schooling, age 75+, total

Portugal

2.48

in 2010

Zambia

2.36

in 2010

Portugal rank

95th

Zambia rank

97th

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

Portugal
Zambia

How they compare

Portugal currently reports 2.48 against 2.36 in Zambia, a difference of 0.12.

That makes Portugal's figure about 1.1 times Zambia's.

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

Portugal ranks 95th and Zambia ranks 97th of 144 countries.

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

Head to head by decade

Decade	Portugal	Zambia	Difference	Ahead
1960s	1.72	0.85	0.87	Portugal
1970s	1.46	0.86	0.6	Portugal
1980s	1.95	1.18	0.775	Portugal
1990s	2.54	2.29	0.245	Portugal
2000s	2.49	2.33	0.165	Portugal
2010s	2.48	2.36	0.12	Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher barro-lee: average years of total schooling, age 75+, total, Portugal or Zambia?: Portugal, at 2.48 against 2.36 in Zambia as of 2010.
What is the difference in barro-lee: average years of total schooling, age 75+, total between Portugal and Zambia?: 0.12, with Portugal ahead.
How many years of comparable data are there for Portugal and Zambia?: 11 years are reported by both, from 1960 to 2010.
How do Portugal and Zambia rank globally for barro-lee: average years of total schooling, age 75+, total?: Portugal ranks 95th and Zambia ranks 97th 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 total schooling, age 75+, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Zambia: Barro-Lee: Average years of total schooling, age 75+, total. Statizoid, drawing on Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/. Retrieved 27 August 2026, from https://reference.statizoid.com/compare/barro-lee-average-years-of-total-schooling-age-75-total/portugal/zambia/

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<a href="https://reference.statizoid.com/compare/barro-lee-average-years-of-total-schooling-age-75-total/portugal/zambia/">Portugal vs Zambia: Barro-Lee: Average years of total schooling, age 75+, total</a> — Statizoid

About this data

Indicator: Barro-Lee: Average years of total 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: 21 August 2026

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