| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1950 |
56.1%
|
| 2 | I did not smoke during the past 12 months | 653 |
18.8%
|
| 3 | Yes | 656 |
18.9%
|
| 4 | No | 216 |
6.2%
|
| Sysmiss | 47 |