| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not difficult at all | 245 |
27.4%
|
| 2 | Not too difficult | 192 |
21.5%
|
| 3 | Somewhat difficult | 191 |
21.4%
|
| 4 | Very difficult | 216 |
24.2%
|
| 8 | Cant choose | 50 |
5.6%
|
| Sysmiss | 1990 |