| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2302 |
72%
|
| 2 | I did not smoke during the past 12 months | 432 |
13.5%
|
| 3 | Yes | 334 |
10.4%
|
| 4 | No | 130 |
4.1%
|
| Sysmiss | 17 |