Disability, Independence and Dependency Situations Survey 
Absolute figures
Population with visual impairments, who use the Braille system, by age and sex 
Unidades: thousands of persons 6 years old and over

;Both sexes;Males;Females;
Total;11,4;5,8;5,6;
6 to 64 years old;8,1;4,7;3,4;
65 to 79 years old;3,2;1,1;2,1;
80 years old and over;0,1;0;0,1;
Notas:
The data corresponding to cells with fewer than 5 thousand persons must  be viewed with caution, because it may be affected by  large sampling errors. 
Fuente: National Statistics Institute