| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very Easy | 216 |
9%
|
| 2 | Easy | 381 |
15.9%
|
| 3 | Difficult | 149 |
6.2%
|
| 4 | Very Difficult | 91 |
3.8%
|
| 7 | No contact | 1553 |
65%
|
| 9 | Don't Know | 0 |
0%
|
| 98 | Refused | 0 |
0%
|