| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 9 | 
                                    
                                    0.4%
                                 | 
| 2 | NO | 1 | 
                                    
                                    0%
                                 | 
| 8 | DK | 1 | 
                                    
                                    0%
                                 | 
| 9 | NO RESPONSE | 56 | 
                                    
                                    2.6%
                                 | 
| Sysmiss | 2086 | 
                                    
                                    96.9%
                                 |