| Value | Category | Cases | |
|---|---|---|---|
| 15 | 1 |
12.5%
|
|
| 18 | 2 |
25%
|
|
| 20 | 1 |
12.5%
|
|
| 21 | 2 |
25%
|
|
| 24 | 1 |
12.5%
|
|
| 28 | 1 |
12.5%
|
|
| Sysmiss | 8290 |