| Value | Category | Cases | |
|---|---|---|---|
| -1 | 8 |
0.1%
|
|
| 0 | 17 |
0.2%
|
|
| 1 | 4149 |
50%
|
|
| 2 | 4121 |
49.7%
|
|
| Sysmiss | 515 |