| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 115 |
9.8%
|
| 2 | Easy | 121 |
10.3%
|
| 3 | Difficult | 29 |
2.5%
|
| 4 | Very Difficult | 22 |
1.9%
|
| 7 | Not Applicable | 886 |
75.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 3 |
0.3%
|