Sex	Social class	Exposure to tobacco smoke	Total
Both sexes	TOTAL	TOTAL	100
Both sexes	TOTAL	Never or almost never	84,58
Both sexes	TOTAL	Less than one hour a day	7,31
Both sexes	TOTAL	One to five hours a day	5,84
Both sexes	TOTAL	More than 5 hours a day	2,28
Both sexes	I	TOTAL	100
Both sexes	I	Never or almost never	86,75
Both sexes	I	Less than one hour a day	6,55
Both sexes	I	One to five hours a day	4,5
Both sexes	I	More than 5 hours a day	2,2
Both sexes	II	TOTAL	100
Both sexes	II	Never or almost never	87,04
Both sexes	II	Less than one hour a day	8,03
Both sexes	II	One to five hours a day	3,68
Both sexes	II	More than 5 hours a day	1,24
Both sexes	III	TOTAL	100
Both sexes	III	Never or almost never	86,66
Both sexes	III	Less than one hour a day	6,29
Both sexes	III	One to five hours a day	5,31
Both sexes	III	More than 5 hours a day	1,74
Both sexes	IV	TOTAL	100
Both sexes	IV	Never or almost never	85,08
Both sexes	IV	Less than one hour a day	7,29
Both sexes	IV	One to five hours a day	5,42
Both sexes	IV	More than 5 hours a day	2,21
Both sexes	V	TOTAL	100
Both sexes	V	Never or almost never	82,86
Both sexes	V	Less than one hour a day	8,03
Both sexes	V	One to five hours a day	6,53
Both sexes	V	More than 5 hours a day	2,58
Both sexes	VI	TOTAL	100
Both sexes	VI	Never or almost never	81,52
Both sexes	VI	Less than one hour a day	7,4
Both sexes	VI	One to five hours a day	8,01
Both sexes	VI	More than 5 hours a day	3,08
Both sexes	No data recorded	TOTAL	100
Both sexes	No data recorded	Never or almost never	88,2
Both sexes	No data recorded	Less than one hour a day	5,9
Both sexes	No data recorded	One to five hours a day	3,86
Both sexes	No data recorded	More than 5 hours a day	2,04
Men	TOTAL	TOTAL	100
Men	TOTAL	Never or almost never	83,83
Men	TOTAL	Less than one hour a day	7,8
Men	TOTAL	One to five hours a day	6,1
Men	TOTAL	More than 5 hours a day	2,27
Men	I	TOTAL	100
Men	I	Never or almost never	86,11
Men	I	Less than one hour a day	7,01
Men	I	One to five hours a day	4,77
Men	I	More than 5 hours a day	2,11
Men	II	TOTAL	100
Men	II	Never or almost never	87,38
Men	II	Less than one hour a day	8,7
Men	II	One to five hours a day	3,04
Men	II	More than 5 hours a day	0,87
Men	III	TOTAL	100
Men	III	Never or almost never	86,02
Men	III	Less than one hour a day	6,84
Men	III	One to five hours a day	5,64
Men	III	More than 5 hours a day	1,5
Men	IV	TOTAL	100
Men	IV	Never or almost never	83,46
Men	IV	Less than one hour a day	8,21
Men	IV	One to five hours a day	5,94
Men	IV	More than 5 hours a day	2,39
Men	V	TOTAL	100
Men	V	Never or almost never	82,12
Men	V	Less than one hour a day	8,53
Men	V	One to five hours a day	6,65
Men	V	More than 5 hours a day	2,7
Men	VI	TOTAL	100
Men	VI	Never or almost never	81,17
Men	VI	Less than one hour a day	7,25
Men	VI	One to five hours a day	8,46
Men	VI	More than 5 hours a day	3,12
Men	No data recorded	TOTAL	100
Men	No data recorded	Never or almost never	83,19
Men	No data recorded	Less than one hour a day	4,73
Men	No data recorded	One to five hours a day	8,82
Men	No data recorded	More than 5 hours a day	3,27
Women	TOTAL	TOTAL	100
Women	TOTAL	Never or almost never	85,29
Women	TOTAL	Less than one hour a day	6,84
Women	TOTAL	One to five hours a day	5,59
Women	TOTAL	More than 5 hours a day	2,28
Women	I	TOTAL	100
Women	I	Never or almost never	87,39
Women	I	Less than one hour a day	6,09
Women	I	One to five hours a day	4,23
Women	I	More than 5 hours a day	2,29
Women	II	TOTAL	100
Women	II	Never or almost never	86,72
Women	II	Less than one hour a day	7,41
Women	II	One to five hours a day	4,28
Women	II	More than 5 hours a day	1,59
Women	III	TOTAL	100
Women	III	Never or almost never	87,28
Women	III	Less than one hour a day	5,76
Women	III	One to five hours a day	5
Women	III	More than 5 hours a day	1,97
Women	IV	TOTAL	100
Women	IV	Never or almost never	86,8
Women	IV	Less than one hour a day	6,3
Women	IV	One to five hours a day	4,87
Women	IV	More than 5 hours a day	2,02
Women	V	TOTAL	100
Women	V	Never or almost never	83,58
Women	V	Less than one hour a day	7,55
Women	V	One to five hours a day	6,41
Women	V	More than 5 hours a day	2,46
Women	VI	TOTAL	100
Women	VI	Never or almost never	81,8
Women	VI	Less than one hour a day	7,53
Women	VI	One to five hours a day	7,63
Women	VI	More than 5 hours a day	3,04
Women	No data recorded	TOTAL	100
Women	No data recorded	Never or almost never	90,15
Women	No data recorded	Less than one hour a day	6,36
Women	No data recorded	One to five hours a day	1,93
Women	No data recorded	More than 5 hours a day	1,56