| Value | Category | Cases | |
|---|---|---|---|
| -3 | Not recorded | 15 |
6.7%
|
| 5 | 1-5 | 15 |
6.7%
|
| 6 | 6 | 1 |
0.4%
|
| 7 | 7 | 18 |
8%
|
| 8 | 8 | 116 |
51.8%
|
| 9 | 9 | 59 |
26.3%
|
| Sysmiss | 76 |