| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Doesn't apply (spontaneous) | 14 |
2.3%
|
| 0 | Below required | 22 |
3.7%
|
| 1 | As required | 441 |
73.4%
|
| 2 | Above required | 124 |
20.6%
|