Value | Category | Cases | |
---|---|---|---|
1 | NO DIFFICULTY | 19166 |
95.5%
|
2 | SOME DIFFICULTY | 756 |
3.8%
|
3 | A LOT OF DIFFICULTY | 145 |
0.7%
|
4 | CANNOT SEE AT ALL | 9 |
0%
|
9 | NO RESPONSE | 1 |
0%
|
Sysmiss | 145 |