| Value | Category | Cases | |
|---|---|---|---|
| 1 | Has functional difficulty | 249 | 
                                    
                                    5.1%
                                 | 
| 2 | Has no functional difficulty | 4633 | 
                                    
                                    94.8%
                                 | 
| Sysmiss | 5 | 
                                    
                                    0.1%
                                 |