| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month, I did not smoke industrial cigarettes. | 2005 |
59.8%
|
| 2 | Less than once a week. | 437 |
13%
|
| 3 | At least once a week but not every day. | 340 |
10.1%
|
| 4 | Every day. | 569 |
17%
|
| Sysmiss | 11 |