| Value | Category | Cases | |
|---|---|---|---|
| 1 | Form 1 or 1st year | 468 |
22.1%
|
| 2 | Form 2 or 2nd year | 576 |
27.2%
|
| 3 | Form 3 or 3rd year | 392 |
18.5%
|
| 4 | Form 4 or 4th year | 685 |
32.3%
|
| Sysmiss | 46 |