| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2791 |
75.4%
|
| 2 | I quit without problmes | 547 |
14.8%
|
| 3 | Yes | 166 |
4.5%
|
| 4 | No | 197 |
5.3%
|
| Sysmiss | 29 |