| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 70 |
5.8%
|
| 2 | Easy | 197 |
16.4%
|
| 3 | Difficult | 79 |
6.6%
|
| 4 | Very Difficult | 31 |
2.6%
|
| 7 | No contact | 822 |
68.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|