| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 1565 |
96.8%
|
| 2 | Less than once a week. | 23 |
1.4%
|
| 3 | At least once a week but not every day. | 15 |
0.9%
|
| 4 | Every day. | 13 |
0.8%
|
| Sysmiss | 45 |