| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 400 |
63.3%
|
| 2 | Both | 71 |
11.2%
|
| 3 | Father only | 83 |
13.1%
|
| 4 | Mother only | 69 |
10.9%
|
| 5 | Don't know | 9 |
1.4%
|
| Sysmiss | 6 |