| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 823 |
59.7%
|
| 2 | Occasionally | 169 |
12.3%
|
| 3 | Often | 40 |
2.9%
|
| 4 | Quite often | 34 |
2.5%
|
| 5 | I have never smoked | 313 |
22.7%
|
| Sysmiss | 12 |