|
2000
|
|
Both never
|
38.5
|
19.5
|
6.3
|
16.1
|
19.6
|
100
|
10
|
|
One never, one irregularly
|
4.6
|
29.7
|
13.2
|
25.9
|
26.6
|
100
|
28
|
|
Both irregularly
|
0.4
|
8.2
|
11.4
|
32.2
|
47.8
|
100
|
16
|
|
One regularly, one irregularly
|
3.5
|
10.3
|
11.8
|
24.4
|
50.0
|
100
|
26
|
|
Both regularly
|
1.1
|
2.5
|
2.8
|
10.2
|
83.4
|
100
|
20
|
|
Total
|
6.1
|
14.5
|
9.8
|
22.4
|
47.2
|
100
|
100
|
|
2017
|
|
Both never
|
68.9
|
14.7
|
5.1
|
5.2
|
6.1
|
100
|
19
|
|
One never, one irregularly
|
13.8
|
49.9
|
11.5
|
13.9
|
10.9
|
100
|
32
|
|
Both irregularly
|
3.1
|
14.4
|
19.6
|
38.6
|
24.3
|
100
|
15
|
|
One regularly, one irregularly
|
7.8
|
19.7
|
16.2
|
28.9
|
27.4
|
100
|
21
|
|
Both regularly
|
1.7
|
4.9
|
3.8
|
17.6
|
72.0
|
100
|
13
|
|
Total
|
19.7
|
26.2
|
11.5
|
19.4
|
23.2
|
100
|
100
|
