Size of the household	Improvements to thermal insulation or the heating system	Total
Total	Has made improvements to thermal insulation or the heating system	14,1
Total	No improvements have been made and it is warm enough during the cold months	60,8
Total	No improvements have been made and it is not warm enough during the cold months	25,1
1 member	Has made improvements to thermal insulation or the heating system	12,5
1 member	No improvements have been made and it is warm enough during the cold months	59,2
1 member	No improvements have been made and it is not warm enough during the cold months	28,3
2 members	Has made improvements to thermal insulation or the heating system	14,5
2 members	No improvements have been made and it is warm enough during the cold months	61,3
2 members	No improvements have been made and it is not warm enough during the cold months	24,1
3 members	Has made improvements to thermal insulation or the heating system	14,9
3 members	No improvements have been made and it is warm enough during the cold months	61,3
3 members	No improvements have been made and it is not warm enough during the cold months	23,8
4 members	Has made improvements to thermal insulation or the heating system	15,2
4 members	No improvements have been made and it is warm enough during the cold months	62,7
4 members	No improvements have been made and it is not warm enough during the cold months	22,1
5 members or more	Has made improvements to thermal insulation or the heating system	14,5
5 members or more	No improvements have been made and it is warm enough during the cold months	58
5 members or more	No improvements have been made and it is not warm enough during the cold months	27,5