| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 340 |
38.1%
|
| 2 | Somewhat difficult | 341 |
38.2%
|
| 3 | Not difficult at all | 209 |
23.4%
|
| 4 | (DK) | 3 |
0.3%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 107 |