| Value | Category | Cases | |
|---|---|---|---|
| 1 | During the past month, I did not smoke industrial cigarettes. | 2688 |
76.7%
|
| 2 | Less than once a week. | 238 |
6.8%
|
| 3 | At least once a week but not every day. | 193 |
5.5%
|
| 4 | Every day. | 385 |
11%
|
| Sysmiss | 28 |