| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 16 |
4.8%
|
| 0 | 32 |
9.6%
|
|
| 1 | Below required | 271 |
81.6%
|
| 2 | As required | 13 |
3.9%
|
| 3 | Above required | 0 |
0%
|