| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 2100 |
98.8%
|
| 2 | Less than once a week. | 20 |
0.9%
|
| 3 | At least once a week but not every day. | 2 |
0.1%
|
| 4 | Every day. | 4 |
0.2%
|
| Sysmiss | 7 |