Housing conditions and energy efficiency Households by burden of housing costs (mortgage or rent, heating, electricity, etc.) by size of the household. Unidades: Horizontal percentages. ;A heavy burden;A reasonable burden;No burden;Not specified; Total;36,2;58;5,6;0,3; 1 member;33,2;58,2;8,3;0,4; 2 members;31,5;62,5;5,8;0,2; 3 members;39,1;56,7;4;0,3; 4 members;42,2;54,3;3,4;0,2; 5 members or more;46,2;49,2;4,2;0,4; Notas: Fuente: Instituto Nacional de Estadística