percentage of population (15+), 25+, total, incomplete primarySource: Education Statistics
Description: Percentage of population, 25+, total, incomplete primary is the percentage of the population over age 25 who did not complete primary education.
Organization: Barro-Lee (2010) paper by Robert J. Barro and Jong-Wha Lee, http://www.barrolee.com/main.htm
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Data source: World Bank