Survey on Adult Population Involvement in Learning Activities Formal and informal education. Percentage values Number of formal education activities, by educational level reached upon completion of the activity, sex and age. Units: percentages Total First stage secondary education, primary education Intermediate-level studies Tertiary level and university studies BOTH SEXES Total [25, 74] 100.00 26.42 9.49 64.09 Subtotal [25, 64] 100.00 25.51 9.50 64.99 25 to 44 years of age 100.00 22.45 9.42 68.12 45 to 64 years of age 100.00 38.49 9.84 51.66 65 to 74 years of age 100.00 . . . MALES Total [25, 74] 100.00 18.53 11.16 70.31 Subtotal [25, 64] 100.00 18.40 11.00 70.59 25 to 44 years of age 100.00 17.35 10.76 71.89 45 to 64 years of age 100.00 23.87 . 63.85 65 to 74 years of age . . . . FEMALES Total [25, 74] 100.00 32.97 8.10 58.93 Subtotal [25, 64] 100.00 31.54 8.23 60.23 25 to 44 years of age 100.00 27.08 8.21 64.71 45 to 64 years of age 100.00 47.78 . 43.92 65 to 74 years of age . . . . 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