| Value | Category | Cases | |
|---|---|---|---|
| 18 | 1 |
10%
|
|
| 21 | 3 |
30%
|
|
| 23 | 1 |
10%
|
|
| 24 | 3 |
30%
|
|
| 26 | 1 |
10%
|
|
| 28 | 1 |
10%
|
|
| Sysmiss | 223 |