| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2906 |
73%
|
| 2 | 0 times | 598 |
15%
|
| 3 | 1 to 3 times | 285 |
7.2%
|
| 4 | 4 times or more | 190 |
4.8%
|
| Sysmiss | 165 |