| Value | Category | Cases | |
|---|---|---|---|
| -7 | 8 |
6.7%
|
|
| 0 | 79 |
65.8%
|
|
| 1 | 2 |
1.7%
|
|
| 2 | 12 |
10%
|
|
| 3 | 11 |
9.2%
|
|
| 4 | 8 |
6.7%
|