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