| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1148 |
63.7%
|
| 2 | Occasionally | 240 |
13.3%
|
| 3 | Often | 45 |
2.5%
|
| 4 | Quite often | 38 |
2.1%
|
| 5 | I have never smoked | 332 |
18.4%
|
| Sysmiss | 17 |