| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3286 |
79.4%
|
| 2 | I did not smoke during the past 12 months | 324 |
7.8%
|
| 3 | Yes | 324 |
7.8%
|
| 4 | No | 205 |
5%
|
| Sysmiss | 33 |