| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 495 | 
                                    
                                    8.5%
                                 | 
| 2 | NO | 1397 | 
                                    
                                    23.9%
                                 | 
| 9 | NO RESPONSE | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 3957 | 
                                    
                                    67.6%
                                 |