| Value | Category | Cases | |
|---|---|---|---|
| 1 | Male | 5 |
1.6%
|
| 2 | Female | 6 |
1.9%
|
| 3 | Both | 14 |
4.3%
|
| 9 | None | 297 |
92.2%
|
| Sysmiss | 4472 |