| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1481 |
91.9%
|
| 2 | Both | 49 |
3%
|
| 3 | Father only | 52 |
3.2%
|
| 4 | Mother only | 10 |
0.6%
|
| 5 | I don't know | 20 |
1.2%
|
| Sysmiss | 8 |