| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1903 |
87.8%
|
| 2 | Both | 18 |
0.8%
|
| 3 | Father only | 164 |
7.6%
|
| 4 | Mother only | 3 |
0.1%
|
| 5 | I don't know | 79 |
3.6%
|
| Sysmiss | 7 |