Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 12 |
0%
|
1 | Very easy | 1001 |
2.2%
|
2 | Easy | 4140 |
9.1%
|
3 | Difficult | 16680 |
36.6%
|
4 | Very difficult | 18236 |
40%
|
9 | Don't know | 5529 |
12.1%
|
997 | Not asked | 0 |
0%
|
998 | Refused | 0 |
0%
|
Sysmiss | 5989 |