| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 11950 |
74.8%
|
| 2 | I have already stopped smoking cigarettes | 1398 |
8.8%
|
| 3 | Yes | 2216 |
13.9%
|
| 4 | No | 408 |
2.6%
|
| Sysmiss | 866 |