0
no smoking
0
1
4
5
6
1
2
2
2
1
3
1
1
1
3
2
2
2
5
0
3
2
7
4
0
4
1
2
1
1
2
1
1
1
2
2
1
4
3
3
1
3
1
1
5
2
3
0
0
