Statistics on the Wage of Persons with Disabilities  
Sampling errors: variation coefficients for the annual earnings per worker variable
Activity Sector
Unidades: coefficient of variation

	Total	Persons without disabilities	Persons with disabilities	
All activity sectors	0,37	0,37	2,6	
Industry and Construction	0,46	0,46	5,03	
Services	0,47	0,48	2,99	
Notas:
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) 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.
Fuente: Spanish National Statistics Institute