| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 599 |
94.6%
|
| 2 | Both | 2 |
0.3%
|
| 3 | Father only | 9 |
1.4%
|
| 4 | Mother only | 0 |
0%
|
| 5 | I don't know | 23 |
3.6%
|
| Sysmiss | 4 |