| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 158 |
16.9%
|
| 2 | Somewhat difficult | 275 |
29.4%
|
| 3 | Not difficult at all | 488 |
52.2%
|
| 4 | (DK) | 11 |
1.2%
|
| 5 | (ref) | 2 |
0.2%
|
| Sysmiss | 68 |