| Value | Category | Cases | |
|---|---|---|---|
| 1 | a. Very difficult | 2691 |
73.7%
|
| 2 | b. somewhat difficult | 753 |
20.6%
|
| 3 | c. Somewhat easy | 148 |
4.1%
|
| 4 | d. Very easy. | 29 |
0.8%
|
| 5 | e. Do not know | 28 |
0.8%
|