| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very Difficult | 570 |
25.8%
|
| 2 | Difficult | 380 |
17.2%
|
| 3 | Easy | 80 |
3.6%
|
| 4 | Very Easy | 23 |
1%
|
| 7 | Never Try | 1101 |
49.8%
|
| 9 | Don't know | 56 |
2.5%
|