| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month I did not smoke pipe with tobacco. | 3347 |
87.3%
|
| 2 | Less than once a week. | 232 |
6%
|
| 3 | At least once a week | 150 |
3.9%
|
| 4 | Two-six times per week | 71 |
1.9%
|
| 5 | Every day | 36 |
0.9%
|
| Sysmiss | 25 |