| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 131 |
15.9%
|
| 2 | Somewhat difficult | 222 |
27%
|
| 3 | Not difficult at all | 452 |
54.9%
|
| 4 | (DK) | 16 |
1.9%
|
| 5 | (ref) | 2 |
0.2%
|
| Sysmiss | 178 |