| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 18 |
1.5%
|
| 2 | Easy | 40 |
3.3%
|
| 3 | Difficult | 49 |
4.1%
|
| 4 | Very Difficult | 102 |
8.5%
|
| 7 | No contact | 989 |
82.4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 2 |
0.2%
|