| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 126 |
13.2%
|
| 2 | Somewhat difficult | 262 |
27.5%
|
| 3 | Not difficult at all | 561 |
58.8%
|
| 4 | (DK) | 5 |
0.5%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 46 |