| Value | Category | Cases | |
|---|---|---|---|
| 1 | Birth certificate | 136 |
3.3%
|
| 2 | Vaccination card | 190 |
4.5%
|
| 3 | Other documents | 25 |
0.6%
|
| 4 | Parent | 3779 |
90.5%
|
| 5 | Other (specify) | 47 |
1.1%
|
| Sysmiss | 19608 |