| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2229 |
49.7%
|
| 2 | I have already stopped smoking cigarettes | 1022 |
22.8%
|
| 3 | Yes | 1092 |
24.3%
|
| 4 | No | 146 |
3.3%
|
| Sysmiss | 33 |