| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 285 |
30%
|
| 2 | Somewhat difficult | 508 |
53.4%
|
| 3 | Not difficult at all | 154 |
16.2%
|
| 4 | (DK) | 4 |
0.4%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 49 |