Statistics on the Wage of Persons with Disabilities  
SAMPLING ERRORS: COEFFICIENT OF VARIATION FOR THE VARIABLE 'GROSS EARNING PER WORKER'
Type of Disability
Units: coefficient of variation

;Total;
Total;2.43;
Physical and other;3.09;
Intellectual;7.19;
Mental;6.77;
Sensory;4.90;
No data recorded;10.14;
Notes:
1) Persons with disabilities refers to persons formally recognised as disabled, with a degree of dissability of  33% or over, according to the procedure for evaluating this established in the RD 1971/1999 and modified by the RD 1856/2009.

 2) Physical and other: impairments of the osteoarticular, neuromuscular, cardiovascular, immune, respiratory, digestive, metabolic and endocrine systems
 Intellectual
 Mental
 Sensory: impairments of the visual and hearing systems

 3) When the box is marked with a '-' sign before the data, it indicates that the number of sample  observations is between 100 and 500, so the figure is subject to great variability.
Source: Spanish National Statistics Institute