| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 914 |
66.6%
|
| 2 | I did not smoke in the past years | 249 |
18.1%
|
| 3 | Yes | 144 |
10.5%
|
| 4 | No | 66 |
4.8%
|
| Sysmiss | 5 |