| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 37 |
1.5%
|
| 2 | Easy | 73 |
3%
|
| 3 | Difficult | 51 |
2.1%
|
| 4 | Very Difficult | 40 |
1.7%
|
| 7 | No contact | 2199 |
91.6%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|