1) According to the ISCED classification: International Standard Classification for Education 2011. For older data according to ISCED 1997 see archive table 0.23.
2) Some data are included in other columns, therefore, in parts the average values of individual education areas are not comparable to the values of others. For more details see source.
3) 2019: Data for upper secondary attainment by programme orientation include completion of a sufficient volume and standard of programmes that would be classified individually as completion of intermediate upper secondary programmes (12% of adults aged 25-64 are in this group).
4) Average of 25 states of the European Union (only OECD countries, partners and/or accession countries of the OECD) after the United Kingdom left the EU. The data were calculated back for the entire time series.

a = data not applicable because category does not apply.
c = too few observations to provide reliable estimates. The calculation of the Länder averages includes those figures.
m = data not available.
y = data included in other category.

Last update: September 20, 2023

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