| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 3364 |
97.8%
|
| 2 | Less than once a week. | 51 |
1.5%
|
| 3 | At least once a week but not every day. | 11 |
0.3%
|
| 4 | Every day. | 15 |
0.4%
|
| Sysmiss | 36 |