Household Budget Survey (HBS) 
Variation coefficient (VC) of total expenditure according to different classification variables
Variation coefficient by country of birth of main provider (from 2011)
Unidades: %
;2022;2021;2020;2019;2018;2017;2016;2015;2014;2013;2012;2011;
        Total;1,15;0,97;1,03;0,9;0,87;0,79;0,79;0,77;0,76;0,76;0,78;0,79;
        Spain;1,23;1,05;1,08;1;0,96;0,88;0,88;0,84;0,84;0,84;0,85;0,87;
        Abroad;3,89;4,16;4,64;3,95;3,72;3,54;3,8;3,74;3,72;3,94;4,11;4,07;
Notas:
Con fecha 18 de Marzo se han corregido los datos de esta tabla
Due to the lack of representativeness, estimates of the cells without data cannot be provided (to points)
From 2011, the country of birth of  household members was collected in the survey. 
Fuente: