| Value | Category | Cases | |
|---|---|---|---|
| 1 | Grade J1 | 548 |
14.5%
|
| 2 | Grade J2 | 2327 |
61.7%
|
| 3 | Grade J3 | 890 |
23.6%
|
| 4 | Grade H1 | 9 |
0.2%
|
| Sysmiss | 20 |