| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 206 |
21.5%
|
| 2 | Somewhat difficult | 285 |
29.7%
|
| 3 | Not difficult at all | 462 |
48.2%
|
| 4 | (DK) | 5 |
0.5%
|
| 5 | (ref) | 1 |
0.1%
|
| Sysmiss | 60 |