| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 11 |
0.9%
|
| 2 | Easy | 50 |
4.2%
|
| 3 | Difficult | 59 |
4.9%
|
| 4 | Very Difficult | 75 |
6.2%
|
| 7 | No contact | 1006 |
83.6%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 1 |
0.1%
|