| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very Easy | 29 |
2.5%
|
| 2 | Easy | 107 |
9.1%
|
| 3 | Difficult | 190 |
16.1%
|
| 4 | Very Difficult | 92 |
7.8%
|
| 7 | No contact | 763 |
64.6%
|
| 9 | Don't Know | 1 |
0.1%
|
| 98 | Refused | 0 |
0%
|