| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 720 |
83.8%
|
| 1 | Yes | 54 |
6.3%
|
| 8 | Unknown | 85 |
9.9%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 6 |