Housing conditions and energy efficiency Households according to whether they have made improvements to thermal insulation or the heating system, by age and gender of the reference person. Unidades: Horizontal percentages. ,Has made improvements to thermal insulation or the heating system,No improvements have been made and it is warm enough during the cold months,No improvements have been made and it is not warm enough during the cold months, Both genders, Total,14,1,60,8,25,1, From 16 to 29 years old,8,4,59,9,31,6, From 30 to 44 years old,13,8,60,1,26,1, From 45 to 64,14,8,60,4,24,8, 65 or older,14,1,61,8,24,1, Men, Total,14,2,62,4,23,4, From 16 to 29 years old,8,9,62,7,28,4, From 30 to 44 years old,13,6,61,4,24,9, From 45 to 64,14,8,62,2,23, 65 or older,14,3,63,6,22,2, Women, Total,14,58,5,27,5, From 16 to 29 years old,7,9,57,35,1, From 30 to 44 years old,14,1,58,27,9, From 45 to 64,14,7,57,5,27,7, 65 or older,13,8,59,9,26,3, Notas: Fuente: Instituto Nacional de Estadística