| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing | 1 |
20%
|
| 5 | 1 |
20%
|
|
| 9 | 1 |
20%
|
|
| 12 | 1 |
20%
|
|
| 13 | 1 |
20%
|
|
| Sysmiss | 195 |