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