| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | 420 |
89.9%
|
|
| 1 | 30 |
6.4%
|
|
| 2 | 10 |
2.1%
|
|
| 3 | 5 |
1.1%
|
|
| 6 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|