| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1330 |
66.3%
|
| 2 | Both | 129 |
6.4%
|
| 3 | Father only | 453 |
22.6%
|
| 4 | Mother only | 38 |
1.9%
|
| 5 | I don't know | 57 |
2.8%
|
| Sysmiss | 40 |