Auditory and visual characteristics Population 16 years old and over by sex, level of studies of main breadwinner and if they have difficulty for seeing. Units: thousands of persons and percentages ,Total,Yes difficulty,No difficulty, ABSOLUTE FIGURES, Both genders, Total,35,361.4,1,626.4,33,735.0, Illiterates and without studies,4,976.3,572.9,4,403.4, Primary and Secondary Education of first cycle,18,429.7,750.3,17,679.4, Secondary education of second cycle and post-secundary,6,796.7,165.8,6,630.9, University,5,158.6,137.4,5,021.2, Males, Total,17,249.8,571.7,16,678.2, Illiterates and without studies,2,290.4,222.2,2,068.2, Primary and Secondary Education of first cycle,9,025.4,261.7,8,763.7, Secondary education of second cycle and post-secundary,3,488.9,56.2,3,432.6, University,2,445.1,31.5,2,413.6, Females, Total,18,111.6,1,054.8,17,056.8, Illiterates and without studies,2,685.9,350.7,2,335.2, Primary and Secondary Education of first cycle,9,404.3,488.5,8,915.7, Secondary education of second cycle and post-secundary,3,307.9,109.6,3,198.3, University,2,713.5,105.9,2,607.5, RELATIVE FIGURES, Both genders, Total,100.00,4.60,95.40, Illiterates and without studies,100.00,11.51,88.49, Primary and Secondary Education of first cycle,100.00,4.07,95.93, Secondary education of second cycle and post-secundary,100.00,2.44,97.56, University,100.00,2.66,97.34, Males, Total,100.00,3.31,96.69, Illiterates and without studies,100.00,9.70,90.30, Primary and Secondary Education of first cycle,100.00,2.90,97.10, Secondary education of second cycle and post-secundary,100.00,1.61,98.39, University,100.00,1.29,98.71, Females, Total,100.00,5.82,94.18, Illiterates and without studies,100.00,13.06,86.94, Primary and Secondary Education of first cycle,100.00,5.19,94.81, Secondary education of second cycle and post-secundary,100.00,3.31,96.69, University,100.00,3.90,96.10, Notes: 1) The data about to crossing of the category 'If they have difficulty' with 'Secondary education of second cycle and post-secundary' and 'University' must be viewed with caution, because they may be affected by high sample errors Source: National Statistics Institute and Ministry of Health and Consumption