| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 14 |
4.2%
|
| 0 | 93 |
28%
|
|
| 1 | Below required | 219 |
66%
|
| 2 | As required | 6 |
1.8%
|
| 3 | Above required | 0 |
0%
|