| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not to parents | 2220 |
25.1%
|
| 1 | Parents | 1863 |
21.1%
|
| 2 | Father | 1616 |
18.3%
|
| 3 | Mother | 3138 |
35.5%
|
| 88 | NA | 251 | |
| 98 | DK | 20 | |
| 99 | Missing | 20 |