| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
1.3%
|
| -7 | Doesn't apply (spontaneous) | 155 |
25.8%
|
| 0 | Below required | 139 |
23.1%
|
| 1 | As required | 251 |
41.8%
|
| 2 | Above required | 48 |
8%
|