| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1356 |
85.4%
|
| 2 | Both | 37 |
2.3%
|
| 3 | Father only | 171 |
10.8%
|
| 4 | Mother only | 3 |
0.2%
|
| 5 | I don't know | 21 |
1.3%
|
| Sysmiss | 32 |