| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1803 |
71%
|
| 2 | I did not smoke during the past 12 months | 300 |
11.8%
|
| 3 | Yes | 275 |
10.8%
|
| 4 | No | 161 |
6.3%
|
| Sysmiss | 21 |