| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 100 |
4.2%
|
| 2 | Easy | 477 |
19.9%
|
| 3 | Difficult | 314 |
13.1%
|
| 4 | Very Difficult | 137 |
5.7%
|
| 7 | Not Applicable | 1370 |
57.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 2 |
0.1%
|