| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 1 |
0.9%
|
| 0 | Below required | 3 |
2.7%
|
| 1 | As required | 81 |
73%
|
| 2 | Above required | 26 |
23.4%
|