| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 164 |
13.7%
|
| 2 | Easy | 204 |
17%
|
| 3 | Difficult | 79 |
6.6%
|
| 4 | Very difficult | 49 |
4.1%
|
| 7 | Not applicable | 704 |
58.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|