| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 207 |
22.8%
|
| 2 | Somewhat difficult | 401 |
44.2%
|
| 3 | Not difficult at all | 296 |
32.6%
|
| 4 | (DK) | 4 |
0.4%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 92 |