| Value | Category | Cases | |
|---|---|---|---|
| 18 | 4 |
28.6%
|
|
| 19 | 4 |
28.6%
|
|
| 20 | 4 |
28.6%
|
|
| 21 | 1 |
7.1%
|
|
| 23 | 1 |
7.1%
|
|
| Sysmiss | 2236 |