| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply (spontaneous) | 2 |
0.4%
|
| 0 | Below required | 9 |
1.7%
|
| 1 | As required | 371 |
71.5%
|
| 2 | Above required | 137 |
26.4%
|