| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 499 | 
                                    
                                    14.7%
                                 | 
| 2 | NO | 70 | 
                                    
                                    2.1%
                                 | 
| 9 | NO RESPONSE | 5 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 2817 | 
                                    
                                    83.1%
                                 |