| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2660 |
76.9%
|
| 2 | Did not smoke cigarettes | 338 |
9.8%
|
| 3 | Yes | 238 |
6.9%
|
| 4 | No | 222 |
6.4%
|
| Sysmiss | 66 |