| Value | Category | Cases | |
|---|---|---|---|
| 1 | Male | 6 |
0.1%
|
| 2 | Female | 11 |
0.2%
|
| 3 | Both | 12 |
0.3%
|
| 9 | None | 4409 |
99.3%
|
| Sysmiss | 356 |