| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1628 |
75.4%
|
| 2 | Both | 37 |
1.7%
|
| 3 | Father only | 315 |
14.6%
|
| 4 | Mother only | 14 |
0.6%
|
| 5 | I don't know | 164 |
7.6%
|
| Sysmiss | 9 |