| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3406 |
77.8%
|
| 2 | Both | 82 |
1.9%
|
| 3 | Father only | 588 |
13.4%
|
| 4 | Mother only | 35 |
0.8%
|
| 5 | I don't know | 268 |
6.1%
|
| Sysmiss | 23 |