| Value | Category | Cases | |
|---|---|---|---|
| 4 | 2 |
22.2%
|
|
| 8 | 2 |
22.2%
|
|
| 12 | 2 |
22.2%
|
|
| 15 | 2 |
22.2%
|
|
| 18 | 1 |
11.1%
|
|
| Sysmiss | 1964 |