| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 31 |
21.1%
|
| 2 | Difficult | 34 |
23.1%
|
| 3 | A little difficult | 30 |
20.4%
|
| 4 | Easy | 52 |
35.4%
|
| Sysmiss | 2 |