Survey on Adult Population Involvement in Learning Activities Formal and informal education. Absolute values Average number of hours employed per activity in informal education activities, by sex and highest level of studies completed by the person carrying them out. Units: hours Average number of hours employed in training Average number of hours employed in self-study Average number of hours employed in transport BOTH SEXES Total 75.80 90.22 28.51 First stage secondary education and lower 80.18 86.33 29.14 Intermediate-level studies 75.84 96.62 30.13 Tertiary level and university studies 73.52 89.12 27.36 MALES Total 66.61 81.74 23.67 First stage secondary education and lower 65.19 72.61 23.46 Intermediate-level studies 70.63 110.34 30.08 Tertiary level and university studies 65.30 71.77 20.33 FEMALES Total 84.76 96.78 32.79 First stage secondary education and lower 95.48 97.89 34.11 Intermediate-level studies 81.84 84.67 30.18 Tertiary level and university studies 80.80 101.29 33.34 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