| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3065 |
72.6%
|
| 2 | Both | 196 |
4.6%
|
| 3 | Father only | 724 |
17.2%
|
| 4 | Mother only | 72 |
1.7%
|
| 5 | I don't know | 164 |
3.9%
|
| Sysmiss | 38 |