| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 568 | 
                                    
                                    16.8%
                                 | 
| 2 | NO | 2 | 
                                    
                                    0.1%
                                 | 
| 9 | NO RESPONSE | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 2820 | 
                                    
                                    83.2%
                                 |