| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | missing | 580 |
15.8%
|
| 1 | 928 |
25.3%
|
|
| 2 | 917 |
25%
|
|
| 3 | 895 |
24.4%
|
|
| 4 | 349 |
9.5%
|