| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1361 |
76.6%
|
| 2 | I did not smoke during the past 12 months | 146 |
8.2%
|
| 3 | Yes | 157 |
8.8%
|
| 4 | No | 112 |
6.3%
|
| Sysmiss | 20 |