| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2%
|
| -7 | Doesn't apply (spontaneous) | 4 |
2.6%
|
| 0 | Below required | 29 |
19.2%
|
| 1 | As required | 105 |
69.5%
|
| 2 | Above required | 10 |
6.6%
|