| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very Easy | 75 |
6.3%
|
| 2 | Easy | 148 |
12.3%
|
| 3 | Difficult | 298 |
24.8%
|
| 4 | Very Difficult | 233 |
19.4%
|
| 7 | No contact | 430 |
35.8%
|
| 9 | Do not know | 16 |
1.3%
|
| 98 | Refused | 0 |
0%
|