| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1945 |
63.1%
|
| 2 | Both | 130 |
4.2%
|
| 3 | Father only | 911 |
29.5%
|
| 4 | Mother only | 30 |
1%
|
| 5 | I don't know | 67 |
2.2%
|
| Sysmiss | 30 |