| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 525 |
60.6%
|
| 2 | Somewhat difficult | 269 |
31.1%
|
| 3 | Not difficult at all | 67 |
7.7%
|
| 4 | (DK) | 5 |
0.6%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 134 |