| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2139 |
84.6%
|
| 2 | Did not smoke cigarettes | 126 |
5%
|
| 3 | Yes | 227 |
9%
|
| 4 | No | 36 |
1.4%
|
| Sysmiss | 239 |