| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 119 |
9.9%
|
| 2 | Easy | 523 |
43.6%
|
| 3 | Difficult | 133 |
11.1%
|
| 4 | Very Difficult | 36 |
3%
|
| 7 | No contact | 387 |
32.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 2 |
0.2%
|