| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 3 |
2.7%
|
| 0 | Below required | 8 |
7.2%
|
| 1 | As required | 76 |
68.5%
|
| 2 | Above required | 24 |
21.6%
|