| Value | Category | Cases | |
|---|---|---|---|
| 4 | 3 |
18.8%
|
|
| 8 | 3 |
18.8%
|
|
| 12 | 4 |
25%
|
|
| 15 | 6 |
37.5%
|
|
| Sysmiss | 1957 |