| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 15 |
2.1%
|
| 2 | No | 227 |
31.9%
|
| 8 | Unknown | 4 |
0.6%
|
| 88 | N/A | 466 |
65.4%
|
| Sysmiss | 869 |