| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
3.2%
|
| -7 | Does not apply (spontaneous) | 40 |
18.3%
|
| 0 | Below required | 96 |
43.8%
|
| 1 | As required | 64 |
29.2%
|
| 2 | Above required | 12 |
5.5%
|
| Sysmiss | 335 |