| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1133 |
60.4%
|
| 2 | no | 145 |
7.7%
|
| 3 | I don't know | 61 |
3.3%
|
| 4 | i do not smoke cigarettes | 537 |
28.6%
|
| Sysmiss | 29 |