| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1762 |
86.2%
|
| 2 | Both | 26 |
1.3%
|
| 3 | Father only | 131 |
6.4%
|
| 4 | Mother only | 2 |
0.1%
|
| 5 | I don't know | 124 |
6.1%
|
| Sysmiss | 64 |