Survey on Adult Population Involvement in Learning Activities Formal and informal education. Absolute values Participation in formal education activities, by sex and highest level of studies completed. Units: persons Total None One More than one BOTH SEXES Total 29,238,135 27,693,629 1,370,480 174,026 First stage secondary education and lower 15,728,355 15,486,193 220,862 . ,Intermediate-level studies, 5,726,079 5,363,496 340,768 . Tertiary level and university studies 7,783,701 6,843,940 808,851 130,910 MALES Total 14,593,072 13,878,424 647,633 67,015 First stage secondary education and lower 7,756,598 7,649,847 97,829 . ,Intermediate-level studies, 2,987,841 2,811,969 170,018 . Tertiary level and university studies 3,848,633 3,416,609 379,786 52,238 FEMALES Total 14,645,063 13,815,205 722,847 107,011 First stage secondary education and lower 7,971,757 7,836,346 123,033 . ,Intermediate-level studies, 2,738,238 2,551,527 170,749 . Tertiary level and university studies 3,935,068 3,427,332 429,065 78,671 Notes: .Data protected by statistical secrecy 1) The Intermediate-level studies category is comprised of: Post-Secondary Education, intermediate-level technical-professional education. Data referring to the 12 months prior to the date of the survey. The symbol '.' shall be deemed as data which cannot be provided since it may be affected by sampling errors. Source: National Statistics Institute