| 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.