| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1AB | 588 |
5.7%
|
| 2 | 1C | 1837 |
17.8%
|
| 3 | Grade 2 | 3702 |
35.9%
|
| 4 | Grade 3 | 4185 |
40.6%
|