| Value | Category | Cases | |
|---|---|---|---|
| 1 | I do not smoke | 1037 |
79.1%
|
| 2 | No | 105 |
8%
|
| 3 | Yes | 92 |
7%
|
| 4 | Only my father | 14 |
1.1%
|
| 5 | Only my mother | 21 |
1.6%
|
| 6 | Only my brother/sister | 16 |
1.2%
|
| 7 | They suspect it | 26 |
2%
|
| Sysmiss | 7 |