Value | Category | Cases | |
---|---|---|---|
1 | NO DIFFICULTY | 2153 |
99.4%
|
2 | SOME DIFFICULTY | 10 |
0.5%
|
3 | A LOT OF DIFFICULTY | 2 |
0.1%
|
4 | CANNOT SEE AT ALL | 2 |
0.1%
|
9 | NO RESPONSE | 0 |
0%
|
Sysmiss | 1385 |