| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 47 |
14.2%
|
| 0 | 176 |
53%
|
|
| 1 | Below required | 105 |
31.6%
|
| 2 | As required | 4 |
1.2%
|
| 3 | Above required | 0 |
0%
|