| Value | Category | Cases | |
|---|---|---|---|
| 2 | SOME DIFFICULTY | 89 | 
                                    
                                    90.8%
                                 | 
| 3 | A LOT OF DIFFICULTY | 8 | 
                                    
                                    8.2%
                                 | 
| 4 | CANNOT WALK 500 M/Y AT ALL | 1 | 
                                    
                                    1%
                                 | 
| 9 | NO RESPONSE | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 15515 |