| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 432 |
50.4%
|
| 2 | Somewhat difficult | 270 |
31.5%
|
| 3 | Not difficult at all | 151 |
17.6%
|
| 4 | (DK) | 4 |
0.5%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 143 |