| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3006 |
74.8%
|
| 2 | Both | 65 |
1.6%
|
| 3 | Father only | 759 |
18.9%
|
| 4 | Mother only | 20 |
0.5%
|
| 5 | I don't know | 169 |
4.2%
|
| Sysmiss | 58 |