| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2953 |
76.5%
|
| 2 | I did not smoke during the past year | 404 |
10.5%
|
| 3 | Yes | 393 |
10.2%
|
| 4 | No | 112 |
2.9%
|
| Sysmiss | 50 |