| Value | Category | Cases | |
|---|---|---|---|
| 1 | a. Very difficult | 872 |
23.9%
|
| 2 | b. Somewhat difficult | 196 |
5.4%
|
| 3 | c. Somewhat easy | 31 |
0.8%
|
| 4 | d. very easy | 5 |
0.1%
|
| Missing value | 2545 |
69.7%
|