| Value | Category | Cases | |
|---|---|---|---|
| 11 | 508 |
23.4%
|
|
| 12 | 397 |
18.3%
|
|
| 18 | 43 |
2%
|
|
| 21 | 743 |
34.3%
|
|
| 22 | 436 |
20.1%
|
|
| 28 | 42 |
1.9%
|
|
| Sysmiss | 18522 |