Housing conditions and energy efficiency Households according to whether they have an adequate temperature in the housing in cold months or in summer, by tenure status of the housing. Unidades: Percentages. ,Not warm enough during the cold months,Not cool enough during the summer, Total,27,5,33,6, Property,24,6,31,3, Lease at market price,36,9,42,6, Lease below market price,40,9,45,1, Free assignment,32,33,9, Notas: Fuente: Instituto Nacional de Estadística