| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 130 |
13.4%
|
| 2 | Somewhat difficult | 275 |
28.3%
|
| 3 | Not difficult at all | 559 |
57.6%
|
| 4 | (DK) | 4 |
0.4%
|
| 5 | (ref) | 3 |
0.3%
|
| Sysmiss | 39 |