| Value | Category | Cases | |
|---|---|---|---|
| 11 | 1 |
1.1%
|
|
| 17 | 1 |
1.1%
|
|
| 18 | 7 |
8%
|
|
| 19 | 5 |
5.7%
|
|
| 20 | 18 |
20.7%
|
|
| 21 | 22 |
25.3%
|
|
| 22 | 33 |
37.9%
|
|
| Sysmiss | 12 |