| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 720 |
36.8%
|
| 2 | Both | 511 |
26.1%
|
| 3 | Father only | 357 |
18.2%
|
| 4 | Mother only | 335 |
17.1%
|
| 5 | I don't know | 35 |
1.8%
|
| Sysmiss | 3 |