| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 3 |
0.5%
|
| 0 | Below required | 35 |
5.8%
|
| 1 | As required | 400 |
66.6%
|
| 2 | Above required | 163 |
27.1%
|