| Value | Category | Cases | |
|---|---|---|---|
| 1 | Neither my father or my mother smoke | 2309 |
77.6%
|
| 2 | Only my father smokes | 529 |
17.8%
|
| 3 | Only my mother smokes | 22 |
0.7%
|
| 4 | My father and mother both smoke | 12 |
0.4%
|
| 5 | I do not know | 103 |
3.5%
|
| Sysmiss | 10 |