| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not Easy | 144 |
6.1%
|
| 2 | Somehow easy | 375 |
15.9%
|
| 3 | Very Easy | 999 |
42.5%
|
| 9 | N/A | 834 |
35.5%
|
| Sysmiss | 2303 |