| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 12 |
1%
|
| 2 | Easy | 25 |
2.1%
|
| 3 | Difficult | 50 |
4.2%
|
| 4 | Very Difficult | 81 |
6.8%
|
| 7 | No contact | 1031 |
86%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|