Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 75 |
0.1%
|
1 | Very easy | 3498 |
6.5%
|
2 | Easy | 11926 |
22.1%
|
3 | Difficult | 16777 |
31.1%
|
4 | Very difficult | 13324 |
24.7%
|
9 | Don't Know | 8331 |
15.4%
|
98 | Refused | 4 |
0%
|