| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1271 |
78.9%
|
| 2 | Both | 10 |
0.6%
|
| 3 | Father only | 304 |
18.9%
|
| 4 | Mother only | 6 |
0.4%
|
| 5 | I don't know | 19 |
1.2%
|
| Sysmiss | 9 |