| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 474 |
58.1%
|
| 2 | Somewhat difficult | 218 |
26.7%
|
| 3 | Not difficult at all | 119 |
14.6%
|
| 4 | (DK) | 4 |
0.5%
|
| 5 | (ref) | 1 |
0.1%
|
| Sysmiss | 184 |