| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 41 | 
                                    
                                    2.6%
                                 | 
| 8 | DK | 1 | 
                                    
                                    0.1%
                                 | 
| 9 | NO RESPONSE | 1 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 1521 | 
                                    
                                    97.3%
                                 |