Disability, Independence and Dependency Situations Survey 
Disabilities, Impairments and State of Health. National results: Relative figures
Percentage of persons with visual impairments, who use Braille, by age and sex
Units: 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;0.90;0.98;
80 years old and over;0.03;0.00;0.05;
Notes:
1) 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. 
Source: National Statistics Institute