| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3015 |
64.2%
|
| 2 | I don't smoke now | 671 |
14.3%
|
| 3 | Yes | 855 |
18.2%
|
| 4 | No | 155 |
3.3%
|
| Sysmiss | 16 |