| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1220 |
80.6%
|
| 2 | Both | 36 |
2.4%
|
| 3 | Father only | 215 |
14.2%
|
| 4 | Mother only | 2 |
0.1%
|
| 5 | I don't know | 40 |
2.6%
|
| Sysmiss | 18 |