Value | Category | Cases | |
---|---|---|---|
1 | NO DIFFICULTY | 4434 |
89%
|
2 | SOME DIFFICULTY | 445 |
8.9%
|
3 | A LOT OF DIFFICULTY | 52 |
1%
|
4 | CANNOT SEE AT ALL | 3 |
0.1%
|
Sysmiss | 49 |
1%
|