| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 278 |
39%
|
| 2 | Somewhat difficult | 267 |
37.4%
|
| 3 | Not difficult at all | 149 |
20.9%
|
| 4 | (DK) | 17 |
2.4%
|
| 5 | (ref) | 2 |
0.3%
|
| Sysmiss | 295 |