Four-yearly Wage Structure Survey 
Four-yearly Wage Structure Survey. 2006
Variation coefficients for the gross annual earnings by studies
Unidades: %

All studies;0,45;
I. Without studies;1,42;
II. Primary education;1,43;
III. Secondary education I;0,72;
IV. Secondary education II;1,34;
V. Intermediate vocational training;1,03;
VI. Advanced level vocational training;0,91;
VII. University diploma or equivalent;1,67;
VIII. University graduates, advanced engineers and doctors;1,13;
Notas:
Fuente: National Statistics Institute