| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very Easy | 9 |
0.4%
|
| 2 | Easy | 36 |
1.5%
|
| 3 | Difficult | 35 |
1.5%
|
| 4 | Very Difficult | 25 |
1%
|
| 7 | No contact | 2285 |
95.2%
|
| 9 | Don't know | 10 |
0.4%
|
| 98 | Refused | 0 |
0%
|