| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3539 |
62.5%
|
| 2 | Both | 274 |
4.8%
|
| 3 | Father only | 1356 |
23.9%
|
| 4 | Mother only | 238 |
4.2%
|
| 5 | I don't know | 259 |
4.6%
|
| Sysmiss | 81 |