| Value | Category | Cases | |
|---|---|---|---|
| -5 | Not available | 1 |
14.3%
|
| 9 | 1 |
14.3%
|
|
| 12 | 2 |
28.6%
|
|
| 18 | 2 |
28.6%
|
|
| 21 | 1 |
14.3%
|
|
| Sysmiss | 193 |