| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2270 |
81.9%
|
| 2 | Both | 27 |
1%
|
| 3 | Father only | 344 |
12.4%
|
| 4 | Mother only | 23 |
0.8%
|
| 5 | I don't know | 108 |
3.9%
|
| Sysmiss | 9 |