| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1605 |
34.7%
|
| 2 | Both | 157 |
3.4%
|
| 3 | Father only | 2750 |
59.4%
|
| 4 | Mother only | 44 |
1%
|
| 5 | I don't know | 72 |
1.6%
|
| Sysmiss | 7 |