| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 516 |
54.3%
|
| 2 | Both | 75 |
7.9%
|
| 3 | Father only | 317 |
33.4%
|
| 4 | Mother only | 11 |
1.2%
|
| 5 | I don't know | 31 |
3.3%
|
| Sysmiss | 9 |