| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3453 |
61.8%
|
| 2 | I have already stopped smoking cigarettes | 1014 |
18.1%
|
| 3 | Yes | 1021 |
18.3%
|
| 4 | No | 99 |
1.8%
|
| Sysmiss | 160 |