| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very Easy | 245 |
10.2%
|
| 2 | Easy | 326 |
13.6%
|
| 3 | Difficult | 271 |
11.3%
|
| 4 | Very Difficult | 188 |
7.8%
|
| 7 | No contact | 1363 |
56.8%
|
| 9 | Don't know | 7 |
0.3%
|
| 98 | Refused | 0 |
0%
|