Percentage of 25-64 years old population whose the highest level of education successfully completed is upper secondary and post-secondary non-tertiary education (levels 3 and 4). This aggregate corresponds to ISCED 2011 levels 3 and 4 (online code ED3_4). ISCED 2011 level 3 programmes of partial level completion are considered within ISCED level 3. Data up to 2013 refer to ISCED 1997 levels 3C long, 3A, 3B and 4.