| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1 |
0.1%
|
| 2 | No | 247 |
34.7%
|
| 8 | Unknown | 2 |
0.3%
|
| 88 | N/A | 462 |
64.9%
|
| Sysmiss | 869 |