| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 11 |
2.7%
|
| -7 | Doesn't apply (spontaneous) | 78 |
19.4%
|
| 0 | Below required | 32 |
8%
|
| 1 | As required | 250 |
62.2%
|
| 2 | Above required | 31 |
7.7%
|