| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3178 |
64.5%
|
| 2 | Both | 94 |
1.9%
|
| 3 | Father only | 1525 |
31%
|
| 4 | Mother only | 36 |
0.7%
|
| 5 | I don't know | 94 |
1.9%
|
| Sysmiss | 39 |