Survey on Adult Population Involvement in Learning Activities Survey on Adult Population Involvement in Learning Activities. Year 2011 Linguistic skills of persons aged 18 to 65 years old by number of languages they can use, sex and age group Units: percentage of persons None One Two Three or more BOTH SEX Total [18, 65 ] 47.24 34.78 13.45 4.54 Subtotal [25, 64] 48.91 34.00 12.61 4.48 18 to 24 years old 33.19 41.46 20.37 4.98 25 to 34 years old 39.37 40.43 15.26 4.95 35 to 44 years old 43.61 37.72 13.63 5.05 45 to 54 years old 53.83 30.63 11.33 4.21 55 to 65 years old 63.62 23.91 9.08 3.39 MALE Total [18, 65 ] 47.19 34.83 13.34 4.64 Subtotal [25, 64] 48.65 33.75 12.90 4.70 18 to 24 years old 35.27 43.80 17.03 3.90 25 to 34 years old 38.95 41.50 15.80 3.76 35 to 44 years old 44.19 36.72 13.56 5.53 45 to 54 years old 53.76 29.97 11.37 4.90 55 to 65 years old 62.63 23.05 9.69 4.63 FEMALE Total [18, 65 ] 47.29 34.71 13.56 4.44 Subtotal [25, 64] 49.19 34.26 12.30 4.25 18 to 24 years old 31.00 39.01 23.87 6.12 25 to 34 years old 39.80 39.32 14.69 6.19 35 to 44 years old 43.01 38.75 13.70 4.54 45 to 54 years old 53.90 31.30 11.28 3.52 55 to 65 years old 64.57 24.74 8.50 2.19 Notes: 1) Mother tongues are excluded Data referring to 12 months before the date of the survey. '.' must be understood as data that cannot be given as it might be affected by sampling errors. Source: National Statistics Institute