| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 9 |
1%
|
| -9 | Missing | 1 |
0.1%
|
| 0 | incorrect | 26 |
3%
|
| 1 | correct | 841 |
95.9%
|
| Sysmiss | 2110 |