| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1971 |
77.3%
|
| 2 | Both | 130 |
5.1%
|
| 3 | Father only | 285 |
11.2%
|
| 4 | Mother only | 37 |
1.5%
|
| 5 | I don't know | 128 |
5%
|
| Sysmiss | 38 |