| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3881 |
61.8%
|
| 2 | Both | 199 |
3.2%
|
| 3 | Father only | 2043 |
32.5%
|
| 4 | Mother only | 87 |
1.4%
|
| 5 | I don't know | 73 |
1.2%
|
| Sysmiss | 47 |