| Value | Category | Cases | |
|---|---|---|---|
| 1 | Form 2 | 439 |
36.5%
|
| 2 | Form 3 | 414 |
34.4%
|
| 3 | Form 4 | 341 |
28.4%
|
| 4 | Other form | 8 |
0.7%
|
| 5 | Ungraded or other grade | 0 |
0%
|
| Sysmiss | 10 |