| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1770 |
77.9%
|
| 2 | Both | 21 |
0.9%
|
| 3 | Father only | 289 |
12.7%
|
| 4 | Mother only | 27 |
1.2%
|
| 5 | I don't know | 164 |
7.2%
|
| Sysmiss | 15 |