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