| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 0 |
0%
|
| -9 | Missing | 1 |
0.4%
|
| 0 | incorrect | 8 |
3%
|
| 1 | correct | 261 |
96.7%
|
| Sysmiss | 2717 |