| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Much more difficult | 47 |
3.9%
|
| 2 | Somewhat more difficult | 107 |
8.9%
|
| 3 | Somewhat more easy | 333 |
27.8%
|
| 4 | Much more easy | 187 |
15.6%
|
| 7 | Not applicable | 497 |
41.4%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 27 |
2.3%
|