Sex	Age	Frequency	Total
Both sexes	Total	Total	100.00
Both sexes	Total	Never or almost never	84.42
Both sexes	Total	Less than one hour a day	4.69
Both sexes	Total	One to five hours a day	3.42
Both sexes	Total	More than 5 hours a day	3.30
Both sexes	Total	Not applicable (does not work in an enclosed space)	4.17
Both sexes	From 16 to 24 years old	Total	100.00
Both sexes	From 16 to 24 years old	Never or almost never	77.16
Both sexes	From 16 to 24 years old	Less than one hour a day	6.59
Both sexes	From 16 to 24 years old	One to five hours a day	5.95
Both sexes	From 16 to 24 years old	More than 5 hours a day	6.05
Both sexes	From 16 to 24 years old	Not applicable (does not work in an enclosed space)	4.24
Both sexes	From 25 to 34 years old	Total	100.00
Both sexes	From 25 to 34 years old	Never or almost never	82.47
Both sexes	From 25 to 34 years old	Less than one hour a day	5.46
Both sexes	From 25 to 34 years old	One to five hours a day	4.53
Both sexes	From 25 to 34 years old	More than 5 hours a day	3.35
Both sexes	From 25 to 34 years old	Not applicable (does not work in an enclosed space)	4.20
Both sexes	From 35 to 44 years old	Total	100.00
Both sexes	From 35 to 44 years old	Never or almost never	85.00
Both sexes	From 35 to 44 years old	Less than one hour a day	4.42
Both sexes	From 35 to 44 years old	One to five hours a day	3.29
Both sexes	From 35 to 44 years old	More than 5 hours a day	3.66
Both sexes	From 35 to 44 years old	Not applicable (does not work in an enclosed space)	3.63
Both sexes	From 45 to 54 years old	Total	100.00
Both sexes	From 45 to 54 years old	Never or almost never	86.65
Both sexes	From 45 to 54 years old	Less than one hour a day	4.43
Both sexes	From 45 to 54 years old	One to five hours a day	2.21
Both sexes	From 45 to 54 years old	More than 5 hours a day	2.78
Both sexes	From 45 to 54 years old	Not applicable (does not work in an enclosed space)	3.93
Both sexes	From 55 to 64 years old	Total	100.00
Both sexes	From 55 to 64 years old	Never or almost never	86.00
Both sexes	From 55 to 64 years old	Less than one hour a day	3.24
Both sexes	From 55 to 64 years old	One to five hours a day	2.59
Both sexes	From 55 to 64 years old	More than 5 hours a day	2.15
Both sexes	From 55 to 64 years old	Not applicable (does not work in an enclosed space)	6.02
Both sexes	From 65 to 74 years old	Total	100.00
Both sexes	From 65 to 74 years old	Never or almost never	89.96
Both sexes	From 65 to 74 years old	Less than one hour a day	4.15
Both sexes	From 65 to 74 years old	One to five hours a day	1.15
Both sexes	From 65 to 74 years old	More than 5 hours a day	0.91
Both sexes	From 65 to 74 years old	Not applicable (does not work in an enclosed space)	3.82
Both sexes	75 years old and over	Total	100.00
Both sexes	75 years old and over	Never or almost never	..
Both sexes	75 years old and over	Less than one hour a day	..
Both sexes	75 years old and over	One to five hours a day	..
Both sexes	75 years old and over	More than 5 hours a day	..
Both sexes	75 years old and over	Not applicable (does not work in an enclosed space)	..
Male	Total	Total	100.00
Male	Total	Never or almost never	80.33
Male	Total	Less than one hour a day	5.65
Male	Total	One to five hours a day	4.09
Male	Total	More than 5 hours a day	3.75
Male	Total	Not applicable (does not work in an enclosed space)	6.18
Male	From 16 to 24 years old	Total	100.00
Male	From 16 to 24 years old	Never or almost never	76.58
Male	From 16 to 24 years old	Less than one hour a day	5.81
Male	From 16 to 24 years old	One to five hours a day	6.06
Male	From 16 to 24 years old	More than 5 hours a day	5.52
Male	From 16 to 24 years old	Not applicable (does not work in an enclosed space)	6.04
Male	From 25 to 34 years old	Total	100.00
Male	From 25 to 34 years old	Never or almost never	76.93
Male	From 25 to 34 years old	Less than one hour a day	7.13
Male	From 25 to 34 years old	One to five hours a day	5.86
Male	From 25 to 34 years old	More than 5 hours a day	3.52
Male	From 25 to 34 years old	Not applicable (does not work in an enclosed space)	6.55
Male	From 35 to 44 years old	Total	100.00
Male	From 35 to 44 years old	Never or almost never	81.13
Male	From 35 to 44 years old	Less than one hour a day	5.57
Male	From 35 to 44 years old	One to five hours a day	3.75
Male	From 35 to 44 years old	More than 5 hours a day	4.38
Male	From 35 to 44 years old	Not applicable (does not work in an enclosed space)	5.17
Male	From 45 to 54 years old	Total	100.00
Male	From 45 to 54 years old	Never or almost never	82.47
Male	From 45 to 54 years old	Less than one hour a day	5.29
Male	From 45 to 54 years old	One to five hours a day	2.69
Male	From 45 to 54 years old	More than 5 hours a day	3.58
Male	From 45 to 54 years old	Not applicable (does not work in an enclosed space)	5.97
Male	From 55 to 64 years old	Total	100.00
Male	From 55 to 64 years old	Never or almost never	82.21
Male	From 55 to 64 years old	Less than one hour a day	3.47
Male	From 55 to 64 years old	One to five hours a day	3.27
Male	From 55 to 64 years old	More than 5 hours a day	2.38
Male	From 55 to 64 years old	Not applicable (does not work in an enclosed space)	8.68
Male	From 65 to 74 years old	Total	100.00
Male	From 65 to 74 years old	Never or almost never	89.96
Male	From 65 to 74 years old	Less than one hour a day	5.43
Male	From 65 to 74 years old	One to five hours a day	1.81
Male	From 65 to 74 years old	More than 5 hours a day	1.43
Male	From 65 to 74 years old	Not applicable (does not work in an enclosed space)	1.37
Male	75 years old and over	Total	100.00
Male	75 years old and over	Never or almost never	..
Male	75 years old and over	Less than one hour a day	..
Male	75 years old and over	One to five hours a day	..
Male	75 years old and over	More than 5 hours a day	..
Male	75 years old and over	Not applicable (does not work in an enclosed space)	..
Female	Total	Total	100.00
Female	Total	Never or almost never	89.70
Female	Total	Less than one hour a day	3.45
Female	Total	One to five hours a day	2.56
Female	Total	More than 5 hours a day	2.71
Female	Total	Not applicable (does not work in an enclosed space)	1.58
Female	From 16 to 24 years old	Total	100.00
Female	From 16 to 24 years old	Never or almost never	77.88
Female	From 16 to 24 years old	Less than one hour a day	7.55
Female	From 16 to 24 years old	One to five hours a day	5.82
Female	From 16 to 24 years old	More than 5 hours a day	6.70
Female	From 16 to 24 years old	Not applicable (does not work in an enclosed space)	2.05
Female	From 25 to 34 years old	Total	100.00
Female	From 25 to 34 years old	Never or almost never	88.79
Female	From 25 to 34 years old	Less than one hour a day	3.55
Female	From 25 to 34 years old	One to five hours a day	3.01
Female	From 25 to 34 years old	More than 5 hours a day	3.15
Female	From 25 to 34 years old	Not applicable (does not work in an enclosed space)	1.51
Female	From 35 to 44 years old	Total	100.00
Female	From 35 to 44 years old	Never or almost never	90.15
Female	From 35 to 44 years old	Less than one hour a day	2.89
Female	From 35 to 44 years old	One to five hours a day	2.68
Female	From 35 to 44 years old	More than 5 hours a day	2.70
Female	From 35 to 44 years old	Not applicable (does not work in an enclosed space)	1.58
Female	From 45 to 54 years old	Total	100.00
Female	From 45 to 54 years old	Never or almost never	92.14
Female	From 45 to 54 years old	Less than one hour a day	3.31
Female	From 45 to 54 years old	One to five hours a day	1.59
Female	From 45 to 54 years old	More than 5 hours a day	1.72
Female	From 45 to 54 years old	Not applicable (does not work in an enclosed space)	1.25
Female	From 55 to 64 years old	Total	100.00
Female	From 55 to 64 years old	Never or almost never	91.88
Female	From 55 to 64 years old	Less than one hour a day	2.88
Female	From 55 to 64 years old	One to five hours a day	1.55
Female	From 55 to 64 years old	More than 5 hours a day	1.79
Female	From 55 to 64 years old	Not applicable (does not work in an enclosed space)	1.90
Female	From 65 to 74 years old	Total	100.00
Female	From 65 to 74 years old	Never or almost never	89.98
Female	From 65 to 74 years old	Less than one hour a day	1.90
Female	From 65 to 74 years old	One to five hours a day	0.00
Female	From 65 to 74 years old	More than 5 hours a day	0.00
Female	From 65 to 74 years old	Not applicable (does not work in an enclosed space)	8.13
Female	75 years old and over	Total	100.00
Female	75 years old and over	Never or almost never	..
Female	75 years old and over	Less than one hour a day	..
Female	75 years old and over	One to five hours a day	..
Female	75 years old and over	More than 5 hours a day	..
Female	75 years old and over	Not applicable (does not work in an enclosed space)	..