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