| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoke | 2341 |
92.3%
|
| 2 | Ocassionaly but less once per month | 122 |
4.8%
|
| 3 | Sometimes during a month but less once a week | 19 |
0.7%
|
| 4 | Sometimes during a week but less once a day | 19 |
0.7%
|
| 5 | Everyday at least one cigarette a day | 35 |
1.4%
|
| Sysmiss | 11 |