| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
0.4%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | Below required | 117 |
10.7%
|
| 1 | As required | 915 |
83.6%
|
| 2 | Above required | 59 |
5.4%
|
| Sysmiss | 1 |