| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
2.2%
|
| -7 | Doesn't apply (spontaneous) | 51 |
12.7%
|
| 0 | Below required | 23 |
5.7%
|
| 1 | As required | 288 |
71.6%
|
| 2 | Above required | 31 |
7.7%
|