| Value | Category | Cases | |
|---|---|---|---|
| 1 | Grade 1 | 920 |
31.9%
|
| 2 | Grade 2 | 927 |
32.1%
|
| 3 | Grade 3 | 1034 |
35.8%
|
| 4 | Grade 4 | 6 |
0.2%
|
| 5 | Ungraded or other grade | 0 |
0%
|
| Sysmiss | 31 |