| Value | Category | Cases | |
|---|---|---|---|
| 1 | I did not smoke tobacco in a pipe during the past 30 days | 2045 |
97%
|
| 2 | Less than once a week | 38 |
1.8%
|
| 3 | At least once a week but not every day | 18 |
0.9%
|
| 4 | Every day | 8 |
0.4%
|
| Sysmiss | 23 |