| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month, I did not smoke industrial cigarettes. | 3401 |
87.9%
|
| 2 | Less than once a week. | 135 |
3.5%
|
| 3 | At least once a week but not every day. | 148 |
3.8%
|
| 4 | Every day. | 187 |
4.8%
|
| Sysmiss | 156 |