| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1634 |
52.8%
|
| 2 | Both | 199 |
6.4%
|
| 3 | Father only | 1091 |
35.3%
|
| 4 | Mother only | 79 |
2.6%
|
| 5 | I don't know | 91 |
2.9%
|
| Sysmiss | 24 |