| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 11 |
0.9%
|
| 2 | Easy | 55 |
4.6%
|
| 3 | Difficult | 44 |
3.7%
|
| 4 | Very Difficult | 34 |
2.8%
|
| 7 | No contact | 1056 |
87.7%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 2 |
0.2%
|