| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3486 |
82.4%
|
| 2 | Both | 76 |
1.8%
|
| 3 | Father only | 421 |
10%
|
| 4 | Mother only | 17 |
0.4%
|
| 5 | I don't know | 231 |
5.5%
|
| Sysmiss | 31 |