| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 47 |
2%
|
| 2 | Easy | 129 |
5.4%
|
| 3 | Difficult | 132 |
5.5%
|
| 4 | Very Difficult | 66 |
2.8%
|
| 7 | No contact | 1996 |
83.2%
|
| 9 | Don't Know | 30 |
1.3%
|
| 98 | Refused | 0 |
0%
|