| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 6143 |
97.6%
|
| 2 | Less than once a week. | 64 |
1%
|
| 3 | At least once a week but not every day. | 34 |
0.5%
|
| 4 | Every day. | 54 |
0.9%
|
| Sysmiss | 83 |