| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 7717 |
77.7%
|
| 2 | I have already stopped smoking cigarettes | 1062 |
10.7%
|
| 3 | Yes | 1009 |
10.2%
|
| 4 | No | 143 |
1.4%
|
| Sysmiss | 32 |