| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 3519 | 
                                    
                                    45.4%
                                 | 
| 2 | NO | 1733 | 
                                    
                                    22.4%
                                 | 
| 9 | NO RESPONSE | 6 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 2492 | 
                                    
                                    32.2%
                                 |