| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4489 |
71.3%
|
| 2 | I don't smoke now | 779 |
12.4%
|
| 3 | Yes | 594 |
9.4%
|
| 4 | No | 435 |
6.9%
|
| Sysmiss | 130 |