| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.9%
|
| -7 | Doesn't apply (spontaneous) | 9 |
8.1%
|
| 0 | Below required | 10 |
9%
|
| 1 | As required | 82 |
73.9%
|
| 2 | Above required | 9 |
8.1%
|