| Value | Category | Cases | |
|---|---|---|---|
| 1 | Male | 40 |
10.9%
|
| 2 | Female | 9 |
2.5%
|
| 3 | Both | 46 |
12.5%
|
| 9 | None | 272 |
74.1%
|
| Sysmiss | 4427 |