| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.1%
|
| -7 | Does not apply (spontaneous) | 113 |
7.2%
|
| 0 | Below required | 106 |
6.7%
|
| 1 | As required | 1212 |
77.1%
|
| 2 | Above required | 140 |
8.9%
|