| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | 178 |
38.1%
|
|
| 1 | 263 |
56.3%
|
|
| 2 | 21 |
4.5%
|
|
| 3 | 3 |
0.6%
|
|
| 4 | 2 |
0.4%
|