| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1821 |
76.5%
|
| 2 | Both | 159 |
6.7%
|
| 3 | Father only | 204 |
8.6%
|
| 4 | Mother only | 21 |
0.9%
|
| 5 | I don't know | 175 |
7.4%
|
| Sysmiss | 51 |