| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 124 |
10.4%
|
| 2 | Easy | 524 |
43.7%
|
| 3 | Difficult | 216 |
18%
|
| 4 | Very Difficult | 66 |
5.5%
|
| 7 | No contact | 265 |
22.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 3 |
0.3%
|