| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 226 | 
                                                                 
                                    
                                    20%
                                 
                                                             | 
                                                        
                    
| 2 | No | 900 | 
                                                                 
                                    
                                    79.8%
                                 
                                                             | 
                                                        
                    
| 97 | N/A | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 98 | DK | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3552 |