Disability, Independence and Dependency Situations Survey 
Relative figures
Percentage of persons with visual impairments, who use Braille, by age and sex 
Unidades: percentage

;Both sexes;Males;Females;
Total;1,16;1,56;0,92;
6 to 64 years old;2,64;3,18;2,14;
65 to 79 years old;0,95;0,9;0,98;
80 years old and over;0,03;0;0,05;
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