| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.3%
|
| -7 | Doesn't apply (spontaneous) | 105 |
17.5%
|
| 0 | Below required | 47 |
7.8%
|
| 1 | As required | 357 |
59.4%
|
| 2 | Above required | 90 |
15%
|