Value | Category | Cases | |
---|---|---|---|
1 | NO DIFFICULTY | 49973 |
72.7%
|
2 | SOME DIFFICULTY | 6998 |
10.2%
|
3 | A LOT OF DIFFICULTY | 711 |
1%
|
4 | CANNOT SEE AT ALL | 16 |
0%
|
9 | NO RESPONSE | 1 |
0%
|
Sysmiss | 11010 |
16%
|