| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3119 |
60.9%
|
| 2 | I did not smoke during the past 12 months | 725 |
14.2%
|
| 3 | Yes | 773 |
15.1%
|
| 4 | No | 504 |
9.8%
|
| Sysmiss | 33 |