| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 63 |
5.3%
|
| 2 | Easy | 83 |
6.9%
|
| 3 | Difficult | 77 |
6.4%
|
| 4 | Very difficult | 57 |
4.8%
|
| 7 | Not applicable | 919 |
76.6%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|