Household Budget Survey (HBS) 
Variation coefficient (VC) of total expenditure according to different classification variables 
VC of total expenditure, by country of birth of the main breadwinner's parents (as of 2011). 
Unidades: %
,Variation coefficient,,,,,
,2015,2014,2013,2012,2011,
        Total,0,8,0,8,0,8,0,8,0,8,
        Spain,0,9,0,9,0,8,0,9,0,9,
        Abroad,4,4,4,2,4,3,4,2,
        Other case,11,9,10,4,11,4,11,1,10,9,
Notas:
Due to a lack of representativeness, estimates cannot be provided for the cells without data (to points)
Beginning in 2011, the survey has begun to collect the country of birth of the parents of the household.
"No data recorded" category is included in "Another case".
Fuente: