| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.7%
|
| -7 | Doesn't apply (spontaneous) | 23 |
5.7%
|
| 0 | Below required | 13 |
3.2%
|
| 1 | As required | 285 |
70.9%
|
| 2 | Above required | 78 |
19.4%
|