| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3724 |
64.4%
|
| 2 | I have already stopped smoking cigarettes | 731 |
12.6%
|
| 3 | Yes | 841 |
14.5%
|
| 4 | No | 487 |
8.4%
|
| Sysmiss | 437 |