| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1615 |
83.5%
|
| 2 | Both | 31 |
1.6%
|
| 3 | Father only | 210 |
10.9%
|
| 4 | Mother only | 7 |
0.4%
|
| 5 | I don't know | 70 |
3.6%
|
| Sysmiss | 14 |