| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 9 |
2.7%
|
| 0 | 46 |
13.9%
|
|
| 1 | Below required | 257 |
77.4%
|
| 2 | As required | 20 |
6%
|
| 3 | Above required | 0 |
0%
|