| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 78 |
6.5%
|
| 2 | Easy | 159 |
13.3%
|
| 3 | Difficult | 73 |
6.1%
|
| 4 | Very difficult | 63 |
5.3%
|
| 7 | Not applicable | 827 |
68.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|