| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1138 |
58.6%
|
| 2 | Occasionally | 387 |
19.9%
|
| 3 | Often | 68 |
3.5%
|
| 4 | Quite often | 48 |
2.5%
|
| 5 | I have never smoked | 301 |
15.5%
|
| Sysmiss | 27 |