| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2953 |
95.1%
|
| 2 | Did not smoke cigarettes | 36 |
1.2%
|
| 3 | Yes | 80 |
2.6%
|
| 4 | No | 35 |
1.1%
|
| Sysmiss | 158 |