| Value | Category | Cases | |
|---|---|---|---|
| -8 | 4 |
0.5%
|
|
| 1 | 17 |
2.2%
|
|
| 2 | 6 |
0.8%
|
|
| 3 | 4 |
0.5%
|
|
| 4 | 1 |
0.1%
|
|
| Missing value | 738 |
95.8%
|