| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1221 |
81.8%
|
| 2 | Both | 5 |
0.3%
|
| 3 | Father only | 222 |
14.9%
|
| 4 | Mother only | 2 |
0.1%
|
| 5 | I don't know | 42 |
2.8%
|
| Sysmiss | 13 |