| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 123 |
13%
|
| 2 | Somewhat difficult | 282 |
29.9%
|
| 3 | Not difficult at all | 530 |
56.1%
|
| 4 | (DK) | 7 |
0.7%
|
| 5 | (ref) | 2 |
0.2%
|
| Sysmiss | 59 |