| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 973 |
45.4%
|
| 2 | Both | 147 |
6.9%
|
| 3 | Father only | 947 |
44.2%
|
| 4 | Mother only | 49 |
2.3%
|
| 5 | I don't know | 26 |
1.2%
|
| Sysmiss | 19 |