| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 477 |
74.8%
|
| 2 | Both | 27 |
4.2%
|
| 3 | Father only | 101 |
15.8%
|
| 4 | Mother only | 12 |
1.9%
|
| 5 | I don't know | 21 |
3.3%
|
| Sysmiss | 6 |