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