| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 33 |
6%
|
| -7 | Does not apply (spontaneous) | 95 |
17.1%
|
| 0 | Below required | 247 |
44.6%
|
| 1 | As required | 141 |
25.5%
|
| 2 | Above required | 38 |
6.9%
|