| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month, I did not smoke industrial cigarettes. | 4393 |
85.5%
|
| 2 | Less than once a week. | 285 |
5.5%
|
| 3 | At least once a week but not every day. | 268 |
5.2%
|
| 4 | Every day. | 193 |
3.8%
|
| Sysmiss | 169 |