| Value | Category | Cases | |
|---|---|---|---|
| -2 | 18 |
3.9%
|
|
| -1 | 60 |
13%
|
|
| 0 | 328 |
70.8%
|
|
| 1 | 47 |
10.2%
|
|
| 2 | 10 |
2.2%
|