Housing conditions and energy efficiency Households according to whether they have an adequate temperature in the housing in cold months or in summer, by degree of urbanization. Unidades: Percentages. ;Not warm enough during the cold months;Not cool enough during the summer; Total;27,5;33,6; Densely populated area;27,7;36,9; Intermediately populated area;28,3;31,9; Scarcely populated area;24,9;24,7; Notas: Fuente: Instituto Nacional de Estadística