| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 27 |
1.1%
|
| 2 | Easy | 58 |
2.4%
|
| 3 | Difficult | 93 |
3.9%
|
| 4 | Very Difficult | 113 |
4.7%
|
| 7 | No contact | 2105 |
87.7%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don't know | 3 |
0.1%
|