| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Very easy | 18 |
1.5%
|
| 2 | Easy | 32 |
2.7%
|
| 3 | Difficult | 20 |
1.7%
|
| 4 | Very Difficult | 33 |
2.8%
|
| 7 | Not applicable | 1097 |
91.4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|