| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2018 |
81.9%
|
| 2 | I did not smoke during the past year | 299 |
12.1%
|
| 3 | Yes | 108 |
4.4%
|
| 4 | No | 39 |
1.6%
|
| Sysmiss | 18 |