| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very Difficult | 598 |
24.6%
|
| 2 | Difficult | 537 |
22.1%
|
| 3 | Easy | 110 |
4.5%
|
| 4 | Very Easy | 36 |
1.5%
|
| 7 | Never Try | 1035 |
42.6%
|
| 9 | Don't know | 112 |
4.6%
|