| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very Easy | 105 |
8.8%
|
| 2 | Easy | 255 |
21.3%
|
| 3 | Difficult | 161 |
13.4%
|
| 4 | Very Difficult | 78 |
6.5%
|
| 7 | No contact | 585 |
48.8%
|
| 9 | Do not know | 16 |
1.3%
|
| 98 | Refused | 0 |
0%
|