| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 5037 |
83%
|
| 2 | Occassionally, but less than once per month | 374 |
6.2%
|
| 3 | Some time each month, but less than once a week | 253 |
4.2%
|
| 4 | Some time each week, but less than once each day | 161 |
2.7%
|
| 5 | Yes, every day at least one cigarette each day | 242 |
4%
|
| Sysmiss | 164 |