| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 268 |
51.4%
|
| 2 | Somewhat difficult | 184 |
35.3%
|
| 3 | Not difficult at all | 64 |
12.3%
|
| 4 | (DK) | 5 |
1%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 479 |