| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 2858 |
87.9%
|
| 2 | Less than once a week. | 232 |
7.1%
|
| 3 | At least once a week but not every day. | 116 |
3.6%
|
| 4 | Every day. | 46 |
1.4%
|
| Sysmiss | 30 |