| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | missing | 468 |
12.8%
|
| 1 | 956 |
26.1%
|
|
| 2 | 895 |
24.4%
|
|
| 3 | 823 |
22.4%
|
|
| 4 | 527 |
14.4%
|