| Value | Category | Cases | |
|---|---|---|---|
| -8 | 15 |
7.5%
|
|
| 0 | 9 |
4.5%
|
|
| 1 | 8 |
4%
|
|
| 2 | 12 |
6%
|
|
| 3 | 23 |
11.6%
|
|
| 4 | 19 |
9.5%
|
|
| 5 | 14 |
7%
|
|
| 6 | 23 |
11.6%
|
|
| 7 | 10 |
5%
|
|
| 8 | 19 |
9.5%
|
|
| 9 | 18 |
9%
|
|
| 10 | 13 |
6.5%
|
|
| 11 | 16 |
8%
|