| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 1505 | 
                                    
                                    27.7%
                                 | 
| 2 | NO | 3920 | 
                                    
                                    72.1%
                                 | 
| 9 | NO RESPONSE | 15 | 
                                    
                                    0.3%
                                 | 
| Sysmiss | 25620 |