| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 61 |
5.1%
|
| 2 | Easy | 124 |
10.3%
|
| 3 | Difficult | 383 |
31.9%
|
| 4 | Very difficult | 450 |
37.5%
|
| 7 | Don't have to pay taxes | 105 |
8.8%
|
| 9 | Do not know | 77 |
6.4%
|
| 98 | Refused | 0 |
0%
|