| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 4021 |
73.1%
|
| 2 | Both | 236 |
4.3%
|
| 3 | Father only | 883 |
16.1%
|
| 4 | Mother only | 126 |
2.3%
|
| 5 | I don't know | 232 |
4.2%
|
| Sysmiss | 67 |