| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 74 |
6.2%
|
| 2 | Easy | 158 |
13.2%
|
| 3 | Difficult | 53 |
4.4%
|
| 4 | Very Difficult | 52 |
4.3%
|
| 7 | No contact | 863 |
71.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|