| Value | Category | Cases | |
|---|---|---|---|
| 1 | a. Very difficult | 1959 |
53.7%
|
| 2 | b. Somewhat difficult | 1233 |
33.8%
|
| 3 | c. Somewhat easy | 401 |
11%
|
| 4 | d. very easy | 56 |
1.5%
|