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