| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 13048 |
97.8%
|
| 2 | YES, SOME DIFFICULTY | 241 |
1.8%
|
| 3 | YES, A LOT OF DIFFICULTY | 43 |
0.3%
|
| 4 | CANNOT PERFORM ACTIVITY AT ALL | 11 |
0.1%
|
| Sysmiss | 1306 |