Survey on Adult Population Involvement in Learning Activities EDUCATIONAL FEATURES Highest educational level attained by persons aged 18 to 65 years old by sex and age group Units: percentage of persons ;First stage of secondary education (complete or incomplete), Primary education and without studies;Post-secondary education and intermediate course studies;Tertiary level studies;University studies; BOTH SEXES; Total [18, 65];45.30;25.65;8.52;20.53; Subtotal [25, 64];45.65;23.46;8.85;22.04; 18 to 24 years;41.56;43.73;6.01;8.69; 25 to 34 years old;34.88;26.39;11.35;27.38; 35 to 44 years old;39.72;23.81;11.34;25.14; 45 to 54 years old;48.83;23.91;7.60;19.66; 55 to 65 years old;64.88;18.38;3.42;13.32; MEN; Total [18, 65];47.51;25.43;9.09;17.97; Subtotal [25, 64];47.28;23.48;9.61;19.62; 18 to 24 years;48.85;41.00;5.04;5.11; 25 to 34 years old;39.34;27.11;11.80;21.75; 35 to 44 years old;43.48;24.36;10.93;21.23; 45 to 54 years old;50.02;22.49;9.03;18.45; 55 to 65 years old;60.59;18.42;5.32;15.68; WOMEN; Total [18, 65];43.07;25.88;7.93;23.11; Subtotal [25, 64];43.99;23.44;8.08;24.48; 18 to 24 years;33.89;46.60;7.04;12.47; 25 to 34 years old;30.25;25.65;10.88;33.23; 35 to 44 years old;35.83;23.24;11.75;29.17; 45 to 54 years old;47.63;25.33;6.17;20.87; 55 to 65 years old;68.97;18.34;1.61;11.08; Notes: Data referring to the 12 months prior to the date of the survey. Symbol '.' it has to be understood as data that cannot be given as it might be affected by sampling errors. Source: National Statistics Institute