| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 42 |
2.6%
|
| 2 | Easy | 167 |
10.4%
|
| 3 | Difficult | 188 |
11.8%
|
| 4 | Very Difficult | 114 |
7.1%
|
| 7 | No contact | 1087 |
67.9%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't know | 1 |
0.1%
|