| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 6133 |
97.2%
|
| 2 | Less than once a week. | 153 |
2.4%
|
| 3 | At least once a week but not every day. | 10 |
0.2%
|
| 4 | Every day. | 14 |
0.2%
|
| Sysmiss | 96 |