| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 45164 |
97.4%
|
| 2 | YES, SOME DIFFICULTY | 985 |
2.1%
|
| 3 | YES, A LOT OF DIFFICULTY | 187 |
0.4%
|
| 4 | CANNOT PERFORM ACTIVITY AT ALL | 33 |
0.1%
|
| Sysmiss | 4107 |