| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3071 |
82.2%
|
| 2 | Both | 229 |
6.1%
|
| 3 | Father only | 281 |
7.5%
|
| 4 | Mother only | 45 |
1.2%
|
| 5 | I don't know | 108 |
2.9%
|
| Sysmiss | 95 |