| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 366 |
41.9%
|
| 2 | Somewhat difficult | 390 |
44.6%
|
| 3 | Not difficult at all | 110 |
12.6%
|
| 4 | (DK) | 8 |
0.9%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 126 |