| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4980 |
89.5%
|
| 2 | I don't smoke now | 281 |
5.1%
|
| 3 | Yes | 176 |
3.2%
|
| 4 | No | 126 |
2.3%
|
| Sysmiss | 36 |