| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1424 |
94.9%
|
| 2 | I did not smoke during the past 12 months | 47 |
3.1%
|
| 3 | Yes | 24 |
1.6%
|
| 4 | No | 5 |
0.3%
|
| Sysmiss | 5 |