| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3028 |
64.4%
|
| 2 | I don't smoke now | 603 |
12.8%
|
| 3 | Yes | 898 |
19.1%
|
| 4 | No | 174 |
3.7%
|
| Sysmiss | 9 |