| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
0.3%
|
| -7 | Does not apply (spontaneous) | 97 |
6.2%
|
| 0 | Below required | 90 |
5.7%
|
| 1 | As required | 1223 |
77.7%
|
| 2 | Above required | 159 |
10.1%
|