| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1068 |
73.3%
|
| 2 | Both | 30 |
2.1%
|
| 3 | Father only | 337 |
23.1%
|
| 4 | Mother only | 12 |
0.8%
|
| 5 | I don't know | 11 |
0.8%
|
| Sysmiss | 40 |