| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 56 |
4.7%
|
| 2 | Easy | 147 |
12.2%
|
| 3 | Difficult | 139 |
11.5%
|
| 4 | Very Difficult | 151 |
12.5%
|
| 7 | No contact | 707 |
58.7%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 2 |
0.2%
|