| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1506 |
66.5%
|
| 2 | Occasionally | 220 |
9.7%
|
| 3 | Often | 44 |
1.9%
|
| 4 | Quite often | 31 |
1.4%
|
| 5 | I have never smoked | 463 |
20.5%
|
| Sysmiss | 23 |