| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 10 |
1.7%
|
| -7 | Doesn't apply (spontaneous) | 84 |
14%
|
| 0 | Below required | 213 |
35.4%
|
| 1 | As required | 266 |
44.3%
|
| 2 | Above required | 28 |
4.7%
|