Four-yearly Wage Structure Survey 
Sampling errors
Studies undertaken. National total
Unidades: %
;Both sexes;;Females;;Males;;
;2022;2018;2022;2018;2022;2018;
        All studies;"";0,42;"";0,6;"";0,67;
        I. Less than Primary;"";5,79;"";7,9;"";6,78;
        II. Primary education;"";1,38;"";2,26;"";1,59;
        III. First stage of secondary education;"";1,14;"";1,49;"";1,5;
        IV. Second stage of secondary education;"";1,13;"";1,3;"";1,58;
        V. Higher-level vocational training courses and similar;"";1,36;"";2,05;"";1,71;
        VI. University graduates and the like;"";1,39;"";1,5;"";2,28;
        VII. Graduates and similar, and university doctors;"";1,33;"";1,51;"";1,91;
Notas:
Fuente: