| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not easy | 12 |
5.3%
|
| 2 | fairly easy | 57 |
25.3%
|
| 3 | easy | 124 |
55.1%
|
| 4 | very easy | 32 |
14.2%
|
| Sysmiss | 366 |