| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 375 |
42.8%
|
| 2 | Somewhat difficult | 274 |
31.2%
|
| 3 | Not difficult at all | 214 |
24.4%
|
| 4 | (DK) | 7 |
0.8%
|
| 5 | (ref) | 7 |
0.8%
|
| Sysmiss | 123 |