| Value | Category | Cases | |
|---|---|---|---|
| 1 | very difficult | 18 |
5.8%
|
| 2 | somewhat difficult | 68 |
22.1%
|
| 3 | somewhat easy | 59 |
19.2%
|
| 4 | easy | 66 |
21.4%
|
| 5 | very easy | 38 |
12.3%
|
| 6 | No opinion | 59 |
19.2%
|
| Sysmiss | 120 |