Survey on Adult Population Involvement in Learning Activities Formal and informal education. Percentage values Use of the knowledge acquired in the informal education activity, by sex and highest level of studies completed by the person carrying it out. Units: percentages Total Very frequently Somewhat frequently Very infrequently Never BOTH SEXES Total 100.00 52.22 33.00 10.51 4.28 First stage secondary education and lower 100.00 48.96 31.79 12.74 6.52 Intermediate-level studies 100.00 56.07 29.49 10.94 3.49 Tertiary level and university studies 100.00 52.08 35.26 9.16 3.50 MALES Total 100.00 55.39 31.95 9.01 3.65 First stage secondary education and lower 100.00 53.09 32.49 9.31 5.11 Intermediate-level studies 100.00 59.47 26.60 10.28 3.65 Tertiary level and university studies 100.00 54.49 34.49 8.17 2.85 FEMALES Total 100.00 49.12 34.02 11.97 4.89 First stage secondary education and lower 100.00 44.70 31.05 16.27 7.97 Intermediate-level studies 100.00 52.20 32.79 11.70 3.31 Tertiary level and university studies 100.00 49.95 35.93 10.04 4.08 Notes: 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