Survey on Adult Population Involvement in Learning Activities Survey on Adult Population Involvement in Learning Activities. Year 2011 Languages that persons aged 18 to 65 years old can use better by sex and maximum educational level achieved Units: percentage of persons ,Spanish,Catalan,Euskera,Valencian,Galician,English,French,German,Italian,Portuguese,Russian, BOTH SEX, Total,16.10,7.88,1.93,2.00,0.99,49.72,15.89,1.88,2.00,1.20,0.41, Secondary education, first stage primary education and illiterate,28.22,14.79,1.48,3.37,0.88,31.63,13.19,2.60,1.49,2.16,., Mid-level studies,16.22,6.26,1.90,1.74,1.18,51.14,16.20,1.68,1.80,0.95,., Higher and university studies,8.56,4.75,2.23,1.34,0.94,59.89,17.33,1.57,2.44,0.78,., MALE, Total,16.75,7.75,1.80,1.91,1.01,50.27,14.80,1.85,2.15,1.27,., Secondary education, first stage primary education and illiterate,26.48,13.53,1.32,3.35,.,34.46,12.92,2.48,1.50,2.73,., Mid-level studies,18.47,5.24,2.09,.,.,51.47,14.23,1.94,.,.,., Higher and university studies,8.31,5.37,1.93,.,.,61.00,16.60,1.33,2.89,.,., FEMALE, Total,15.45,8.01,2.07,2.10,0.98,49.17,17.00,1.91,1.84,1.13,., Secondary education, first stage primary education and illiterate,30.46,16.41,1.68,3.39,.,27.99,13.54,2.76,.,.,., Mid-level studies,13.94,7.29,1.72,.,.,50.80,18.18,1.42,1.81,.,., Higher and university studies,8.78,4.20,2.50,1.67,1.05,58.89,17.99,1.79,2.04,0.94,., Notes: .Data protected by statistical secrecy 1) The category 'Intermediate level studies' includes: Secondary education, intermediate technical-vocational education and other. It has been selected the language that the own person considers s/he can use better, between Spanish, English, French, German, Russian, Italian, Portuguese, Catalan, Galician, Valencian and Euskera, excluding mother tongues. Data referring to 12 months before the date of the survey. The symbol '.' means that data is not available, since it may be affected by sampling errors. Source: National Statistics Institute