| Value | Category | Cases | |
|---|---|---|---|
| -8 | 1 |
0.1%
|
|
| 1 | 18 |
2.3%
|
|
| 2 | 38 |
4.9%
|
|
| 3 | 67 |
8.7%
|
|
| 4 | 5 |
0.6%
|
|
| Missing value | 641 |
83.2%
|