| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1598 |
77.8%
|
| 2 | Both | 30 |
1.5%
|
| 3 | Father only | 326 |
15.9%
|
| 4 | Mother only | 7 |
0.3%
|
| 5 | I don't know | 93 |
4.5%
|
| Sysmiss | 7 |