| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 4925 |
76.1%
|
| 2 | Both | 359 |
5.5%
|
| 3 | Father only | 849 |
13.1%
|
| 4 | Mother only | 180 |
2.8%
|
| 5 | I don't know | 159 |
2.5%
|
| Sysmiss | 46 |