| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 16 |
1.3%
|
| 2 | Easy | 65 |
5.4%
|
| 3 | Difficult | 202 |
16.8%
|
| 4 | Very difficult | 454 |
37.8%
|
| 7 | Don't have to pay taxes | 26 |
2.2%
|
| 9 | Don't Know | 437 |
36.4%
|
| 98 | Refused | 0 |
0%
|