| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2373 |
40.9%
|
| 2 | Both | 442 |
7.6%
|
| 3 | Father only | 2678 |
46.2%
|
| 4 | Mother only | 167 |
2.9%
|
| 5 | I don't know | 135 |
2.3%
|
| Sysmiss | 124 |