| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 2053 | 
                                    
                                    21.3%
                                 | 
| 2 | NO | 7597 | 
                                    
                                    78.7%
                                 | 
| 9 | NO RESPONSE | 7 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 177133 |