| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 9 |
3.6%
|
| 0 | Below required | 12 |
4.8%
|
| 1 | As required | 155 |
62%
|
| 2 | Above required | 74 |
29.6%
|