| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 1531 |
60.9%
|
| 2 | Somewhat difficult | 726 |
28.9%
|
| 3 | Not difficult at all | 241 |
9.6%
|
| 4 | (DK) | 14 |
0.6%
|
| 5 | (ref) | 2 |
0.1%
|
| Sysmiss | 486 |