| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 8 |
7.2%
|
| 0 | Below required | 5 |
4.5%
|
| 1 | As required | 84 |
75.7%
|
| 2 | Above required | 14 |
12.6%
|