| Value | Category | Cases | |
|---|---|---|---|
| 1 | Form 1 | 602 |
32.5%
|
| 2 | Form 2 | 455 |
24.6%
|
| 3 | Form 3 | 780 |
42.2%
|
| 4 | Some other form | 13 |
0.7%
|
| 5 | Ungraded or other grade | 0 |
0%
|
| Sysmiss | 14 |