| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | Less than 1 | 225 |
33.7%
|
| 1 | 1- | 388 |
58.2%
|
| 2 | 2- | 48 |
7.2%
|
| 3 | 3- | 3 |
0.4%
|
| 4 | 4+ | 3 |
0.4%
|