| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2867 |
80.5%
|
| 2 | I did not smoke during the past 12 months | 319 |
9%
|
| 3 | Yes | 217 |
6.1%
|
| 4 | No | 158 |
4.4%
|
| Sysmiss | 80 |