| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2160 |
70%
|
| 2 | Both | 296 |
9.6%
|
| 3 | Father only | 270 |
8.8%
|
| 4 | Mother only | 40 |
1.3%
|
| 5 | I don't know | 318 |
10.3%
|
| Sysmiss | 25 |