| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
9.1%
|
|
| 2 | 2 |
18.2%
|
|
| 3 | 1 |
9.1%
|
|
| 4 | 2 |
18.2%
|
|
| 6 | 1 |
9.1%
|
|
| 7 | 2 |
18.2%
|
|
| 19 | 1 |
9.1%
|
|
| 20 | 1 |
9.1%
|
|
| Sysmiss | 20 |