Over-age students, primary (% of enrollment)

Definition: Over-age students are the percentage of those enrolled who are older than the official school-age range for primary education.

Description: The map below shows how Over-age students, primary (% of enrollment) varies by country. The shade of the country corresponds to the magnitude of the indicator. The darker the shade, the higher the value. The country with the highest value in the world is Angola, with a value of 58.88. The country with the lowest value in the world is Japan, with a value of 0.00.

Source: United Nations Educational, Scientific, and Cultural Organization (UNESCO) Institute for Statistics.

See also: Country ranking, Time series comparison

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Statistical Concept and Methodology: The percentage of over-age students is calculated by dividing the number of students who are older than the official school-age range for primary education by primary school enrollment, and multiplying by 100. Data on education are collected by the UNESCO Institute for Statistics from official responses to its annual education survey. All the data are mapped to the International Standard Classification of Education (ISCED) to ensure the comparability of education programs at the international level. The current version was formally adopted by UNESCO Member States in 2011. Population data are drawn from the United Nations Population Division. Using a single source for population data standardizes definitions, estimations, and interpolation methods, ensuring a consistent methodology across countries and minimizing potential enumeration problems in national censuses. The reference years reflect the school year for which the data are presented. In some countries the school year spans two calendar years (for example, from September 2010 to June 2011); in these cases the reference year refers to the year in which the school year ended (2011 in the example).

Periodicity: Annual