| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 840 |
47.5%
|
| 2 | Both | 155 |
8.8%
|
| 3 | Father only | 645 |
36.5%
|
| 4 | Mother only | 77 |
4.4%
|
| 5 | I don't know | 52 |
2.9%
|
| Sysmiss | 6 |