| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1878 |
45.9%
|
| 2 | Both | 232 |
5.7%
|
| 3 | Father only | 1748 |
42.7%
|
| 4 | Mother only | 104 |
2.5%
|
| 5 | Don't know | 131 |
3.2%
|
| Sysmiss | 53 |