| Value | Category | Cases | |
|---|---|---|---|
| 8 | 1211 |
7.4%
|
|
| 9 | 7422 |
45.2%
|
|
| 10 | 6642 |
40.5%
|
|
| 11 | 1074 |
6.5%
|
|
| 12 | 57 |
0.3%
|
|
| 13 | 12 |
0.1%
|
|
| Sysmiss | 273 |