When you were smoking/sniffing, about how many times did you smoke/sniff per day
Categories
Value
Category
1
one to five or less
2
six to ten
3
less than a pack
4
one pack
5
one to two packs
6
two packs or more
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.