| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 41 |
3.4%
|
| 2 | Easy | 112 |
9.3%
|
| 3 | Difficult | 99 |
8.3%
|
| 4 | Very difficult | 74 |
6.2%
|
| 7 | Not applicable | 874 |
72.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|