Secondary education, duration (years)

Definition: Secondary duration refers to the number of grades (years) in secondary school.

Description: The map below shows how Secondary education, duration (years) 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 Slovak Republic, with a value of 9.00. The country with the lowest value in the world is Philippines, with a value of 4.00.

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: 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. Aggregate data are based on World Bank estimates. 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).

Aggregation method: Median

Periodicity: Annual