| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 3462 |
96.9%
|
| 2 | Less than once a week. | 43 |
1.2%
|
| 3 | At least once a week but not every day. | 32 |
0.9%
|
| 4 | Every day. | 36 |
1%
|
| Sysmiss | 14 |