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: