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