6
no smoking
2
2
1
3
2
2
2
1
3
1
1
1
1
3
2
3
2
2
5
0
3
2
1
0
6
4
0
4
1
2
1
1
1
2
4
1
1
1
2
2
2
1
4
3
2
1
3
1
1
