| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3315 |
90.2%
|
| 2 | Did not smoke cigarettes | 127 |
3.5%
|
| 3 | Yes | 174 |
4.7%
|
| 4 | No | 61 |
1.7%
|
| Sysmiss | 79 |