| Value | Category | Cases | |
|---|---|---|---|
| 18 | 1 |
4.3%
|
|
| 31 | 20 |
87%
|
|
| 33 | 1 |
4.3%
|
|
| 34 | 1 |
4.3%
|
|
| Sysmiss | 12228 |