| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 1 |
0.7%
|
| 0 | Below required | 30 |
19.7%
|
| 1 | As required | 112 |
73.7%
|
| 2 | Above required | 9 |
5.9%
|
| Sysmiss | 359 |