| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1AB | 600 |
5.9%
|
| 2 | 1C | 1767 |
17.4%
|
| 3 | Grade 2 | 4190 |
41.2%
|
| 4 | Grade 3 | 3334 |
32.8%
|
| 9 | 275 |
2.7%
|