| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month, I did not smoke industrial cigarettes. | 3628 |
90.7%
|
| 2 | Less than once a week. | 173 |
4.3%
|
| 3 | At least once a week but not every day. | 126 |
3.1%
|
| 4 | Every day. | 74 |
1.8%
|
| Sysmiss | 37 |