| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 136 |
11.3%
|
| 2 | Easy | 555 |
46.3%
|
| 3 | Difficult | 149 |
12.4%
|
| 4 | Very Difficult | 31 |
2.6%
|
| 7 | Not Applicable | 328 |
27.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 1 |
0.1%
|