Value | Category | Cases | |
---|---|---|---|
1 | NO DIFFICULTY | 4985 |
91%
|
2 | SOME DIFFICULTY | 302 |
5.5%
|
3 | A LOT OF DIFFICULTY | 62 |
1.1%
|
4 | CANNOT SEE AT ALL | 9 |
0.2%
|
9 | NO RESPONSE | 1 |
0%
|
Sysmiss | 120 |
2.2%
|