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 nationality Units: percentage of persons None One Two Three or more BOTH SEX Total 47.24 34.78 13.45 4.54 Spanish 50.45 33.86 12.20 3.49 Other nationality 27.71 40.36 21.01 10.92 MALE Total 47.19 34.83 13.34 4.64 Spanish 51.02 33.63 11.77 3.58 Other nationality 22.89 42.46 23.30 11.35 FEMALE Total 47.29 34.71 13.56 4.44 Spanish 49.87 34.08 12.65 3.39 Other nationality 32.26 38.38 18.85 10.51 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