| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1671 |
81.1%
|
| 2 | I did not smoke during the past 12 months | 189 |
9.2%
|
| 3 | Yes | 114 |
5.5%
|
| 4 | No | 87 |
4.2%
|
| Sysmiss | 10 |