| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1696 |
75.3%
|
| 2 | Did not smoke cigarettes | 291 |
12.9%
|
| 3 | Yes | 170 |
7.5%
|
| 4 | No | 96 |
4.3%
|
| Sysmiss | 139 |