Notes:
1) According to the ISCED classification: International Standard Classification for Education 2011. From public and private sources of funds including international sources.
2) Year of reference 2012: including undistributed programmes.
3) Due to differences in definitions and classifications, comparisons between countries are sometimes limited. In addition, the years listed may differ from the actual reference years. Methodological notes and the assignment of reporting years can be found in the various editions of "Education at a Glance".
4) For a precise allocation of which states were included in the calculation of the OECD average in the individual reporting years, see the respective edition of "Education at a Glance".
5) Average of the states of the European Union (for an exact allocation see source). 2012: EU21 average; 2013 to 2015: EU22 average; 2016 to 2017: EU23 average; 2018 to 2019: EU22 average after the United Kingdom left the EU; as of 2020: EU25 average.

a = data not applicable because category does not apply.
m = data not available.
y = data included in other category or column of the table.

Last update: October 1, 2026

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