Income quintile per unit of consumption;Main heating system;Total Total;Central heating;8,9 Total;Individual heating;55,1 Total;Non-fixed heating system;17,2 Total;Other;0,9 Total;Does not use any heating system;15,7 Total;Not specified;2,3 First quintile;Central heating;5,4 First quintile;Individual heating;42,9 First quintile;Non-fixed heating system;24,2 First quintile;Other;0,6 First quintile;Does not use any heating system;25,5 First quintile;Not specified;1,5 Second quintile;Central heating;6 Second quintile;Individual heating;50,4 Second quintile;Non-fixed heating system;20,4 Second quintile;Other;0,8 Second quintile;Does not use any heating system;20,3 Second quintile;Not specified;2,1 Third quintile;Central heating;7,9 Third quintile;Individual heating;54,6 Third quintile;Non-fixed heating system;17,9 Third quintile;Other;0,9 Third quintile;Does not use any heating system;16,3 Third quintile;Not specified;2,5 Fourth quintile;Central heating;10,9 Fourth quintile;Individual heating;60,5 Fourth quintile;Non-fixed heating system;15,5 Fourth quintile;Other;1 Fourth quintile;Does not use any heating system;9,7 Fourth quintile;Not specified;2,5 Fifth quintile;Central heating;13,9 Fifth quintile;Individual heating;66,7 Fifth quintile;Non-fixed heating system;8,6 Fifth quintile;Other;1,1 Fifth quintile;Does not use any heating system;7 Fifth quintile;Not specified;2,6