| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Very easy | 10 |
0.8%
|
| 2 | Easy | 73 |
6.1%
|
| 3 | Difficult | 268 |
22.4%
|
| 4 | Very difficult | 287 |
24%
|
| 7 | Don’t have to pay taxes | 299 |
25%
|
| 9 | Don’t know | 260 |
21.7%
|
| 98 | Refused | 0 |
0%
|