| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 767 |
82.8%
|
| 2 | Both | 34 |
3.7%
|
| 3 | Father only | 42 |
4.5%
|
| 4 | Mother only | 11 |
1.2%
|
| 5 | I don't know | 72 |
7.8%
|
| Sysmiss | 18 |