| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 45787 |
98.7%
|
| 2 | YES, SOME DIFFICULTY | 381 |
0.8%
|
| 3 | YES, A LOT OF DIFFICULTY | 135 |
0.3%
|
| 4 | CANNOT PERFORM ACTIVITY AT ALL | 66 |
0.1%
|
| Sysmiss | 4107 |