| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
4.5%
|
|
| 1 | 4 |
18.2%
|
|
| 5 | 10 |
45.5%
|
|
| 7.5 | 1 |
4.5%
|
|
| 10 | 4 |
18.2%
|
|
| 18 | 1 |
4.5%
|
|
| 20 | 1 |
4.5%
|
|
| Sysmiss | 43 |