| Value | Category | Cases | |
|---|---|---|---|
| 1 | very difficult | 16 |
4.8%
|
| 2 | somewhat difficult | 51 |
15.2%
|
| 3 | somewhat easy | 66 |
19.6%
|
| 4 | easy | 101 |
30.1%
|
| 5 | very easy | 63 |
18.8%
|
| 6 | No opinion | 39 |
11.6%
|
| Sysmiss | 92 |