| Value | Category | Cases | |
|---|---|---|---|
| 7 | 6 |
7.7%
|
|
| 8 | 14 |
17.9%
|
|
| 9 | 23 |
29.5%
|
|
| 10 | 10 |
12.8%
|
|
| 11 | 15 |
19.2%
|
|
| 12 | 10 |
12.8%
|
|
| Sysmiss | 831 |