Survey on Adult Population Involvement in Learning Activities CULTURAL ACTIVITIES Persons aged 18 to 65 years old who read books by book format, sex and maximum educational level achieved Units: percentage of persons Only e-books Only paper books Both e-books and paper books BOTH SEX Total 1.42 92.13 6.45 Secondary education, first stage primary education and illiterate 0.90 96.53 2.56 Intermediate level studies 1.31 93.05 5.64 Higher and university studies 1.90 88.11 9.99 MALE Total 1.98 89.42 8.60 Secondary education, first stage primary education and illiterate . 95.45 3.31 Intermediate level studies 1.66 91.22 7.12 Higher and university studies 2.74 83.77 13.50 FEMALE Total 0.99 94.20 4.81 Secondary education, first stage primary education and illiterate . 97.33 2.02 Intermediate level studies . 94.45 4.52 Higher and university studies 1.24 91.56 7.21 Notes: .Data protected by statistical secrecy 1) The category 'Intermediate level studies' includes: Secondary education, intermediate technical-vocational education and other. 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 Institut