| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Yes (Main source) | 191 | 222 | 
                                                                 
                                    
                                    8.3%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | Yes (Secondary source) | 436 | 512 | 
                                                                 
                                    
                                    19.2%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | No | 1734 | 1931 | 
                                                                 
                                    
                                    72.4%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 2 | 2 |