| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 92 |
9.9%
|
| 2 | Somewhat difficult | 389 |
41.8%
|
| 3 | Not difficult at all | 444 |
47.7%
|
| 4 | (DK) | 4 |
0.4%
|
| 5 | (ref) | 2 |
0.2%
|
| Sysmiss | 70 |