| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4409 |
81.3%
|
| 2 | Did not smoke cigarettes | 387 |
7.1%
|
| 3 | Yes | 514 |
9.5%
|
| 4 | No | 114 |
2.1%
|
| Sysmiss | 237 |