| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.2%
|
| -7 | Does not apply (spontaneous) | 5 |
0.5%
|
| 0 | Below required | 135 |
13.6%
|
| 1 | As required | 720 |
72.4%
|
| 2 | Above required | 133 |
13.4%
|