Disability, Independence and Dependency Situations Survey 
Employment and Education. Relative figures
Percentage of persons with disabilities, according to level of studies completed, by age and sex.
Units: percentage

,Total,,,6 to 64 years old,,,65 to 79 years old,,,80 years old and over,,,
,Both sexes,Males,Females,Both sexes,Males,Females,Both sexes,Males,Females,Both sexes,Males,Females,
Total,100.00,100.00,100.00,100.00,100.00,100.00,100.00,100.00,100.00,100.00,100.00,100.00,
Not applicable, under 10 years old,0.01,0.01,0.01,0.07,0.04,0.12,0.00,0.00,0.00,0.00,0.00,0.00,
Cannot read or write,21.68,25.20,19.80,47.70,46.13,50.24,20.14,19.43,20.72,14.68,13.15,15.15,
Incomplete primary education,45.26,39.94,48.09,25.53,24.99,26.40,44.58,43.64,45.35,51.23,48.85,51.95,
Primary education or the equivalent,23.63,22.61,24.18,14.61,14.30,15.10,24.01,24.61,23.52,26.12,27.59,25.67,
Secondary education, 1st stage,3.04,3.99,2.54,4.36,5.60,2.36,3.09,3.63,2.65,2.64,3.01,2.53,
Upper-secondary education,3.06,4.10,2.51,4.40,5.49,2.65,4.08,4.38,3.83,2.30,2.84,2.14,
Intermediate professional training or the equivalent,1.27,1.41,1.20,1.38,1.40,1.35,1.34,1.88,0.90,1.22,1.09,1.26,
Advanced professional training or the equivalent,0.54,0.78,0.41,0.81,0.77,0.87,0.60,0.54,0.64,0.43,0.94,0.28,
University studies or the equivalent,1.51,1.96,1.27,1.14,1.27,0.92,2.16,1.88,2.40,1.37,2.54,1.02,
Notes:
1) The data corresponding to cells with fewer than one thousand persons must  be taken with caution because it may be affected by a high incidence of  sampling errors.  
Source: National Statistics Institute