| Value | Category | Cases | |
|---|---|---|---|
| -3 | Not recorded | 6 |
6.1%
|
| 5 | 1-5 | 20 |
20.2%
|
| 6 | 6 | 3 |
3%
|
| 7 | 7 | 13 |
13.1%
|
| 8 | 8 | 40 |
40.4%
|
| 9 | 17 |
17.2%
|