| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
18.2%
|
|
| 1 | 5 |
45.5%
|
|
| 4 | 2 |
18.2%
|
|
| 6 | 1 |
9.1%
|
|
| 20 | 1 |
9.1%
|
|
| Sysmiss | 156 |