Four-yearly Wage Structure Survey 
Sampling errors
Studies undertaken. National total
Unidades:   %

;Both sexes;Females;Males;
        All studies;"";"";"";
        I. Less than Primary;"";"";"";
        II. Primary education;"";"";"";
        III. First stage of secondary education;"";"";"";
        IV. Second stage of secondary education;"";"";"";
        V. Higher-level vocational training courses and similar;"";"";"";
        VI. University graduates and the like;"";"";"";
        VII. Graduates and similar, and university doctors;"";"";"";
Notas:
Fuente: