| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 54 |
2.3%
|
| 2 | Easy | 248 |
10.3%
|
| 3 | Difficult | 593 |
24.7%
|
| 4 | Very difficult | 897 |
37.4%
|
| 7 | Don't have to pay taxes | 87 |
3.6%
|
| 9 | Don't Know | 521 |
21.7%
|
| 98 | Refused | 0 |
0%
|