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: