| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1657 |
62.4%
|
| 2 | I don't smoke now | 423 |
15.9%
|
| 3 | Yes | 537 |
20.2%
|
| 4 | No | 39 |
1.5%
|
| Sysmiss | 16 |