| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1541 |
43.1%
|
| 2 | I have already stopped smoking cigarettes | 1132 |
31.7%
|
| 3 | Yes | 810 |
22.7%
|
| 4 | No | 89 |
2.5%
|
| Sysmiss | 27 |