| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1515 |
89.5%
|
| 2 | Occasionally, but less than once a month | 106 |
6.3%
|
| 3 | Some time each month, but less than one cigarette per week | 45 |
2.7%
|
| 4 | Sometime each week, but less than one cigarette per day | 23 |
1.4%
|
| 5 | Every day at least one cigarette | 4 |
0.2%
|
| Sysmiss | 40 |