Disability, Independence and Dependency Situations Survey 
Disabilities, Impairments and State of Health. National results: Relative figures
Percentage of persons with hearing impairments, who use sign language, by age and sex
Units: percentage

;Both sexes;Males;Females;
Total;1.25;1.53;1.04;
6 to 64 years old;3.83;3.83;3.83;
65 to 79 years old;0.36;0.50;0.24;
80 years old and over;0.09;0.00;0.14;
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