| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3401 |
81.2%
|
| 2 | Both | 61 |
1.5%
|
| 3 | Father only | 632 |
15.1%
|
| 4 | Mother only | 26 |
0.6%
|
| 5 | I don't know | 69 |
1.6%
|
| Sysmiss | 88 |