| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not easy | 44 |
4.7%
|
| 2 | Slightly easy | 301 |
31.9%
|
| 3 | Easy | 396 |
41.9%
|
| 4 | Very easy | 204 |
21.6%
|
| Sysmiss | 1055 |