| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2271 |
55.6%
|
| 2 | I have already stopped smoking cigarettes | 870 |
21.3%
|
| 3 | Yes | 869 |
21.3%
|
| 4 | No | 77 |
1.9%
|
| Sysmiss | 42 |