| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2553 |
80.6%
|
| 2 | I did not smoke during the past year | 225 |
7.1%
|
| 3 | Yes | 226 |
7.1%
|
| 4 | No | 164 |
5.2%
|
| Sysmiss | 72 |