| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 263 |
34.2%
|
| 2 | Somewhat difficult | 339 |
44.1%
|
| 3 | Not difficult at all | 159 |
20.7%
|
| 4 | (DK) | 7 |
0.9%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 232 |