| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 292 |
31.5%
|
| 2 | Somewhat difficult | 378 |
40.7%
|
| 3 | Not difficult at all | 247 |
26.6%
|
| 4 | (DK) | 11 |
1.2%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 72 |