| Value | Category | Cases | |
|---|---|---|---|
| 1 | very difficult | 7 |
1.8%
|
| 2 | somewhat difficult | 46 |
12.1%
|
| 3 | somewhat easy | 81 |
21.4%
|
| 4 | easy | 130 |
34.3%
|
| 5 | very easy | 93 |
24.5%
|
| 6 | No opinion | 22 |
5.8%
|
| Sysmiss | 49 |