| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3588 |
61.1%
|
| 2 | I did not smoke during the past year | 856 |
14.6%
|
| 3 | Yes | 1002 |
17.1%
|
| 4 | No | 425 |
7.2%
|
| Sysmiss | 174 |