| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 458 |
51.6%
|
| 2 | Somewhat difficult | 317 |
35.7%
|
| 3 | Not difficult at all | 111 |
12.5%
|
| 4 | (DK) | 1 |
0.1%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 113 |