| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 34 |
13.6%
|
| 0 | Below required | 41 |
16.4%
|
| 1 | As required | 128 |
51.2%
|
| 2 | Above required | 47 |
18.8%
|