| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | 1 |
25%
|
|
| 7 | 1 |
25%
|
|
| 2000 | 1 |
25%
|
|
| 2013 | 1 |
25%
|
|
| Sysmiss | 467 |