| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very Difficult | 298 |
13.5%
|
| 2 | Difficult | 541 |
24.5%
|
| 3 | Easy | 544 |
24.6%
|
| 4 | Very Easy | 107 |
4.8%
|
| 7 | Never Try | 666 |
30.1%
|
| 9 | Don't know | 54 |
2.4%
|