| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 13921 |
99%
|
| 2 | YES - SOME DIFFICULTY | 64 |
0.5%
|
| 3 | YES - A LOT OF DIFFICULTY | 40 |
0.3%
|
| 4 | CANNOT PERFORM ACTIVITY AT ALL | 36 |
0.3%
|
| Sysmiss | 2412 |