| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 721 |
72.1%
|
| 2 | I did not smoke in the past years | 164 |
16.4%
|
| 3 | Yes | 76 |
7.6%
|
| 4 | No | 39 |
3.9%
|
| Sysmiss | 6 |