Health Persons aged 16 and over according to viewing limitations by educational level Units: Porcentajes horizontales. ,Ninguna dificultad,Con alguna dificultad,Con mucha dificultad,No puede ver,No consta, Total,74.7,21.6,2.9,0.2,0.6, Educación primaria o inferior,63.0,28.8,6.9,0.6,0.7, Educación secundaria primera etapa,77.6,19.4,2.4,0.1,0.5, Educación secundaria segunda etapa,77.1,20.1,2.2,0.1,0.6, Educación superior,77.5,20.2,1.7,0.1,0.5, No consta,42.7,12.3,8.5,..,36.5, Notes: Source: Instituto Nacional de Estadística