| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 1285 | 
                                    
                                    6.1%
                                 | 
| 2 | NO | 19505 | 
                                    
                                    93%
                                 | 
| 9 | NO RESPONSE | 184 | 
                                    
                                    0.9%
                                 | 
| Sysmiss | 406 |