| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1495 |
86.2%
|
| 2 | Both | 36 |
2.1%
|
| 3 | Father only | 173 |
10%
|
| 4 | Mother only | 2 |
0.1%
|
| 5 | I don't know | 28 |
1.6%
|
| Sysmiss | 13 |