Survey on Adult Population Involvement in Learning Activities Formal and informal education. Absolute values Persons who have had expenses due to participation in formal and informal education activities, by sex and highest level of studies completed by the person carrying them out. Units: persons Total Yes No No data recorded BOTH SEXES Total 8,180,893 8,060,462 118,295 . First stage secondary education and lower 2,342,004 2,313,993 . . Intermediate-level studies 1,976,793 1,963,550 . . Tertiary level and university studies 3,862,095 3,782,919 77,041 . MALES Total 4,047,516 3,992,141 53,240 . First stage secondary education and lower 1,200,394 1,187,643 . . Intermediate-level studies 1,017,830 1,012,066 . . Tertiary level and university studies 1,829,291 1,792,432 34,724 . FEMALES Total 4,133,378 4,068,322 65,056 . First stage secondary education and lower 1,141,610 1,126,350 . . Intermediate-level studies 958,963 951,485 . . Tertiary level and university studies 2,032,804 1,990,487 42,318 . 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