| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 11485 |
98.3%
|
| 2 | Less than once a week. | 84 |
0.7%
|
| 3 | At least once a week but not every day. | 82 |
0.7%
|
| 4 | Every day. | 31 |
0.3%
|
| Sysmiss | 90 |