| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only father | 1402 |
37.1%
|
| 2 | Only mother | 371 |
9.8%
|
| 3 | Neither | 403 |
10.7%
|
| 4 | Both | 1598 |
42.3%
|
| Sysmiss | 253 |