| Value | Category | Cases | |
|---|---|---|---|
| -3 | Not applicable | 600 |
50%
|
| 0 | 0 | 127 |
10.6%
|
| 1 | 1 | 281 |
23.4%
|
| 2 | 2 | 147 |
12.3%
|
| 3 | 3 | 33 |
2.8%
|
| 4 | 4 | 12 |
1%
|