| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | No | 696 | 1306361 | 
                                                                 
                                    
                                    9.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 1 | Yes | 446 | 901517 | 
                                                                 
                                    
                                    6.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 99 | Not stated | 5781 | 11371050 | 
                                                                 
                                    
                                    83.7%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 8106 | 16339142 |