| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Very Easy | 97 |
3.4%
|
| 2 | 2. Easy | 300 |
10.6%
|
| 3 | 3. Neither easy nor difficult | 469 |
16.6%
|
| 4 | 4. Difficult | 543 |
19.2%
|
| 5 | 5. Very difficult | 1417 |
50.1%
|
| Sysmiss | 121 |