| Value | Category | Cases | |
|---|---|---|---|
| -3 | Not applicable | 600 |
50%
|
| 0 | 0 | 172 |
14.3%
|
| 1 | 1 | 243 |
20.3%
|
| 2 | 2 | 134 |
11.2%
|
| 3 | 3 | 19 |
1.6%
|
| 4 | 4 | 32 |
2.7%
|