Household Budget Survey (HBS) 
Variation coefficient (VC) of total expenditure according to different classification variables 
VC of total expenditure by occupation CNO-94 (up to 2011), (large groups) of the main breadwinner. 
Unidades: %
;Variation coefficient;;;;;;;;;;
;2015;2014;2013;2012;2011;2010;2009;2008;2007;2006;
        All occupations;"";"";"";"";1,2;1,1;1,2;1,1;1,2;1,3;
        1 Business and public administration management ;"";"";"";"";4,2;4;3,9;3,9;3,7;4,1;
        2 Scientific and intellectual technicians and professionals  ;"";"";"";"";3,3;3,5;3,5;3,7;3,6;4;
        3 Support technicians and professionals ;"";"";"";"";3,5;3,5;3,7;3,9;4;4,5;
        4 Administrative-type employees;"";"";"";"";4,4;4,2;4,2;4,2;4,6;4,9;
        5 Workers in catering, personal, and protection services and trade salespersons;"";"";"";"";3,5;3,4;3,8;4;4,2;4,3;
        6 Workers skilled in agriculture and fishing;"";"";"";"";8;7,6;8,3;7,2;7,6;7,7;
        Craftspersons and employees qualified for the manufacturing, construction, and mining industries;"";"";"";"";3;2,9;2,9;2,7;2,7;2,8;
        Operators and assemblers of fixed machinery and drivers and operators of mobile machinery;"";"";"";"";3,7;3,6;3,6;3,6;3,6;4;
        9 Unskilled workers;"";"";"";"";3,7;3,9;4;4;3,9;4,3;
        Other case;"";"";..;14,3;14,3;14,9;14,9;16,6;12,7;14,6;
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: