Survey on Adult Population Involvement in Learning Activities Informal learning. Absolute values Participation in informal learning activities, by sex and highest level of studies completed. Units: persons Total Yes No No data recorded BOTH SEXES Total 29,238,135 7,675,648 21,523,492 38,995 First stage secondary education and lower 15,728,355 2,657,086 13,046,871 . Intermediate-level studies 5,726,079 1,769,309 3,948,480 . Tertiary level and university studies 7,783,701 3,249,253 4,528,141 . MALES Total 14,593,072 3,877,844 10,701,560 . First stage secondary education and lower 7,756,598 1,343,116 6,402,817 . Intermediate-level studies 2,987,841 913,661 2,071,177 . Tertiary level and university studies 3,848,633 1,621,066 2,227,567 . FEMALES Total 14,645,063 3,797,804 10,821,931 . First stage secondary education and lower 7,971,757 1,313,970 6,644,054 . Intermediate-level studies 2,738,238 855,648 1,877,303 . Tertiary level and university studies 3,935,068 1,628,187 2,300,574 . Notes: .Data protected by statistical secrecy 1) The Intermediate-level studies category is comprised of: post-secondary education and 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