| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1507 |
83%
|
| 2 | I did not smoke during the past 12 months | 161 |
8.9%
|
| 3 | Yes | 100 |
5.5%
|
| 4 | No | 48 |
2.6%
|
| Sysmiss | 3 |