| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 793 |
16%
|
| 2 | Fairly difficult | 599 |
12.1%
|
| 3 | Fairly easy | 1347 |
27.1%
|
| 4 | Very easy | 863 |
17.4%
|
| 5 | I don't know | 1362 |
27.4%
|
| Sysmiss | 67 |