| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 78 | 
                                    
                                    1.8%
                                 | 
| 2 | NO | 49 | 
                                    
                                    1.2%
                                 | 
| 9 | NO RESPONSE | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 4107 | 
                                    
                                    97%
                                 |