| Value | Category | Cases | |
|---|---|---|---|
| 1 | Officially documented | 23 |
95.8%
|
| 2 | Hereditary | 0 |
0%
|
| 5 | oral agreement | 1 |
4.2%
|
| 11 | .A | 9 | |
| Sysmiss | 66 |