During the last 24 hours, how many cigarettes did you smoke?
Categories
Value
Category
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
23
24
25
27
30
31
32
40
99
Missing
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.