| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 2596 |
89.7%
|
| 2 | Some time, but less than once a month | 166 |
5.7%
|
| 3 | Occasionally, more than one cigarette each month, but less than once per week | 40 |
1.4%
|
| 4 | Occasionally, more than one cigarette each week, but less than once per day | 29 |
1%
|
| 5 | Every day at least one cigarette | 62 |
2.1%
|
| Sysmiss | 13 |