| Value | Category | Cases | |
|---|---|---|---|
| 2556 | 3 |
0.1%
|
|
| 2557 | 17 |
0.6%
|
|
| 2558 | 12 |
0.4%
|
|
| 9998 | DK | 12 |
0.4%
|
| Sysmiss | 2944 |
98.5%
|