| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1515 |
71.3%
|
| 2 | Both | 84 |
4%
|
| 3 | Father only | 348 |
16.4%
|
| 4 | Mother only | 81 |
3.8%
|
| 5 | I don't know | 96 |
4.5%
|
| Sysmiss | 31 |