Household Budget Survey (HBS) 
Variation coefficient (VC) of total expenditure according to different classification variables 
VC of total expenditure by occupation CNO-11 (as of 2012), (large groups) of the main breadwinner. 
Unidades: %
;Variation coefficient;;;;
;2015;2014;2013;2012;
        Total;1,2;1,2;1,2;1,2;
        1 Directors and managers;5,5;5,7;5,6;5,5;
        2 Scientific and intellectual technicians and professionals ;3,2;3,2;3,3;3,4;
        3 Technicians; support professionals;3,8;3,6;3,6;3,5;
        4 Accounting, administrative and other office employees;4,2;4,1;4,2;4,5;
        5 Workers in catering, personal, and protection services and salespersons;2,8;2,7;2,9;2,9;
        6 Skilled agricultural, livestock, forestry and fishing sector workers;7,7;8,5;7,4;7,5;
        7 Craftspersons and skilled workers in manufacturing and construction (except installation and machinery operators ;3,1;3;3,1;3;
        8 Installation and machinery operators and assemblers;3,9;3,8;3,8;3,8;
        9 Basic occupations;3,9;3,9;4,1;4,2;
        Other case;14,7;15,3;12,9;14,3;
Notas:
Due to a lack of representativeness, estimates cannot be provided for the cells without data (to points)
"Large Group 0 (Armed Forces) categories and "No data recorded" are included in "Another case"
The new National Classification of Occupations (NCO-2011) has been included as of 2012, and therefore, there will be categories that are not comparable with previous years, in which the classification used was NCO-94.
Households with the main breadwinner employed.
Fuente: