| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 2476 | 
                                    
                                    20.4%
                                 | 
| 2 | NO | 9647 | 
                                    
                                    79.5%
                                 | 
| 9 | NO RESPONSE | 10 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 174657 |