Income quintile per unit of consumption;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 First quintile;Has made improvements to thermal insulation or the heating system;9.0 First quintile;No improvements have been made and it is warm enough during the cold months;54.6 First quintile;No improvements have been made and it is not warm enough during the cold months;36.4 Second quintile;Has made improvements to thermal insulation or the heating system;12.0 Second quintile;No improvements have been made and it is warm enough during the cold months;56.6 Second quintile;No improvements have been made and it is not warm enough during the cold months;31.4 Third quintile;Has made improvements to thermal insulation or the heating system;13.5 Third quintile;No improvements have been made and it is warm enough during the cold months;60.9 Third quintile;No improvements have been made and it is not warm enough during the cold months;25.6 Fourth quintile;Has made improvements to thermal insulation or the heating system;16.0 Fourth quintile;No improvements have been made and it is warm enough during the cold months;64.2 Fourth quintile;No improvements have been made and it is not warm enough during the cold months;19.8 Fifth quintile;Has made improvements to thermal insulation or the heating system;19.9 Fifth quintile;No improvements have been made and it is warm enough during the cold months;67.3 Fifth quintile;No improvements have been made and it is not warm enough during the cold months;12.8