| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 151 |
12.8%
|
| 2 | Easy | 159 |
13.5%
|
| 3 | Difficult | 23 |
2%
|
| 4 | Very Difficult | 16 |
1.4%
|
| 7 | Not Applicable | 822 |
69.9%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't Know | 4 |
0.3%
|