| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1AB | 590 |
5.7%
|
| 2 | 1C | 1867 |
18%
|
| 3 | Grade 2 | 3744 |
36.1%
|
| 4 | Grade 3 | 4157 |
40.1%
|