| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.1%
|
| -7 | Does not apply (spontaneous) | 7 |
0.7%
|
| 0 | Below required | 181 |
18.2%
|
| 1 | As required | 729 |
73.3%
|
| 2 | Above required | 77 |
7.7%
|