| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.1%
|
| -7 | Does not apply (spontaneous) | 10 |
1%
|
| 0 | Below required | 101 |
10.2%
|
| 1 | As required | 823 |
82.7%
|
| 2 | Above required | 60 |
6%
|