| Value | Category | Cases | |
|---|---|---|---|
| 1 | I did not smoke tobacco in a pipe during the past 30 days (one month) | 11602 |
98%
|
| 2 | Less than once a week | 126 |
1.1%
|
| 3 | At least once a week but not every day | 73 |
0.6%
|
| 4 | Every day | 42 |
0.4%
|
| Sysmiss | 39 |