| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 2671 | 
                                    
                                    34.5%
                                 | 
| 2 | NO | 1322 | 
                                    
                                    17.1%
                                 | 
| 9 | NO RESPONSE | 3 | 
                                    
                                    0%
                                 | 
| Sysmiss | 3754 | 
                                    
                                    48.4%
                                 |