Survey on Adult Population Involvement in Learning Activities Formal and informal education. Absolute values Persons began to study an educational level higher than that achieved, and dropped out, by sex and highest level of studies completed. Units: persons Total Yes No No data recorded BOTH SEXES Total 29,238,135 4,359,656 24,818,927 59,552 First stage secondary education and lower 15,728,355 2,067,096 13,620,208 41,051 Intermediate-level studies 5,726,079 1,436,132 4,283,780 . Tertiary level and university studies 7,783,701 856,428 6,914,939 . MALES Total 14,593,072 2,446,564 12,124,680 . First stage secondary education and lower 7,756,598 1,163,391 6,579,879 . Intermediate-level studies 2,987,841 834,787 2,149,775 . Tertiary level and university studies 3,848,633 448,385 3,395,026 . FEMALES Total 14,645,063 1,913,092 12,694,247 37,724 First stage secondary education and lower 7,971,757 903,705 7,040,330 . Intermediate-level studies 2,738,238 601,345 2,134,004 . Tertiary level and university studies 3,935,068 408,043 3,519,913 . 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