| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2051 |
92.3%
|
| 2 | Both | 33 |
1.5%
|
| 3 | Father only | 120 |
5.4%
|
| 4 | Mother only | 9 |
0.4%
|
| 5 | I don't know | 8 |
0.4%
|
| Sysmiss | 11 |