Survey on Adult Population Involvement in Learning Activities Formal and informal education. Absolute values Persons who have had expenses due to participation in 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 7,360,321 1,846,411 5,503,924 . First stage secondary education and lower 2,175,208 540,144 1,633,337 . Intermediate-level studies 1,756,337 425,260 1,328,654 . Tertiary level and university studies 3,428,776 881,007 2,541,933 . MALES Total 3,673,847 695,779 2,973,230 . First stage secondary education and lower 1,128,621 201,952 926,670 . Intermediate-level studies 916,817 155,932 760,885 . Tertiary level and university studies 1,628,409 337,896 1,285,676 . FEMALES Total 3,686,474 1,150,631 2,530,694 . First stage secondary education and lower 1,046,587 338,193 706,668 . Intermediate-level studies 839,520 269,327 567,769 . Tertiary level and university studies 1,800,367 543,112 1,256,258 . 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