| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 130 |
10.8%
|
| 2 | Easy | 141 |
11.8%
|
| 3 | Difficult | 82 |
6.8%
|
| 4 | Very Difficult | 72 |
6%
|
| 7 | No contact | 773 |
64.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|