| Value | Category | Cases | |
|---|---|---|---|
| 1 | Easy | 47 |
34.1%
|
| 2 | Neither easy nor difficult | 17 |
12.3%
|
| 3 | Difficult | 71 |
51.4%
|
| 4 | 3 |
2.2%
|
|
| Sysmiss | 68 |