| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 37 |
59.7%
|
| 1 | Yes | 16 |
25.8%
|
| 8 | Unknown | 9 |
14.5%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 803 |