| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 53 |
4.4%
|
| 2 | Easy | 122 |
10.2%
|
| 3 | Difficult | 66 |
5.5%
|
| 4 | Very Difficult | 33 |
2.8%
|
| 7 | No contact | 926 |
77.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|