| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 288 | 
                                    
                                    2.5%
                                 | 
| 2 | NO | 6559 | 
                                    
                                    57.2%
                                 | 
| 9 | NO RESPONSE | 33 | 
                                    
                                    0.3%
                                 | 
| Sysmiss | 4584 | 
                                    
                                    40%
                                 |