| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 50 |
5%
|
| 2 | Somewhat difficult | 85 |
8.6%
|
| 3 | Not difficult at all | 855 |
86.2%
|
| 4 | (DK) | 1 |
0.1%
|
| 5 | (ref) | 1 |
0.1%
|
| Sysmiss | 9 |