| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 329 |
40.4%
|
| 2 | Somewhat difficult | 282 |
34.6%
|
| 3 | Not difficult at all | 200 |
24.5%
|
| 4 | (DK) | 4 |
0.5%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 185 |