| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2215 |
71.5%
|
| 2 | Both | 56 |
1.8%
|
| 3 | Father only | 731 |
23.6%
|
| 4 | Mother only | 29 |
0.9%
|
| 5 | I don't know | 67 |
2.2%
|
| Sysmiss | 15 |