| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month, I did not smoke industrial cigarettes. | 2975 |
70.3%
|
| 2 | Less than once a week. | 326 |
7.7%
|
| 3 | At least once a week but not every day. | 358 |
8.5%
|
| 4 | Every day. | 572 |
13.5%
|
| Sysmiss | 14 |