| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 400 |
19.5%
|
| 2 | Fairly difficult | 68 |
3.3%
|
| 3 | Fairly easy | 83 |
4.1%
|
| 4 | Very easy | 61 |
3%
|
| 5 | I don't know | 1437 |
70.1%
|
| Sysmiss | 27 |