| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3055 |
85.1%
|
| 2 | Both | 121 |
3.4%
|
| 3 | Father only | 373 |
10.4%
|
| 4 | Mother only | 20 |
0.6%
|
| 5 | I don't know | 23 |
0.6%
|
| Sysmiss | 12 |