| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 4902 |
57.5%
|
| 2 | Both | 780 |
9.1%
|
| 3 | Father only | 1659 |
19.5%
|
| 4 | Mother only | 537 |
6.3%
|
| 5 | I don't know | 651 |
7.6%
|
| Sysmiss | 73 |