| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 204 |
13.7%
|
| 2 | Fairly difficult | 58 |
3.9%
|
| 3 | Fairly easy | 95 |
6.4%
|
| 4 | Very easy | 233 |
15.7%
|
| 5 | I don't know | 896 |
60.3%
|
| Sysmiss | 33 |