| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 207 | 
                                    
                                    4.9%
                                 | 
| 2 | NO | 601 | 
                                    
                                    14.2%
                                 | 
| 9 | NO RESPONSE | 3 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 3424 | 
                                    
                                    80.9%
                                 |