| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 4106 |
67%
|
| 2 | Both | 114 |
1.9%
|
| 3 | Father only | 1732 |
28.3%
|
| 4 | Mother only | 70 |
1.1%
|
| 5 | Don't know | 105 |
1.7%
|
| Sysmiss | 18 |