| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 261 |
29.9%
|
| 2 | Somewhat difficult | 363 |
41.6%
|
| 3 | Not difficult at all | 241 |
27.6%
|
| 4 | (DK) | 7 |
0.8%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 128 |