| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 4384 |
70%
|
| 2 | Both | 257 |
4.1%
|
| 3 | Father only | 1162 |
18.6%
|
| 4 | Mother only | 307 |
4.9%
|
| 5 | I don't know | 151 |
2.4%
|
| Sysmiss | 8 |