| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3525 |
74.9%
|
| 2 | Both | 275 |
5.8%
|
| 3 | Father only | 515 |
10.9%
|
| 4 | Mother only | 209 |
4.4%
|
| 5 | I don't know | 184 |
3.9%
|
| Sysmiss | 4 |