| Value | Category | Cases | |
|---|---|---|---|
| 1 | Red River Delta | 290 | 
                                                                 
                                    
                                    28.1%
                                 
                                                             | 
                                                        
                    
| 3 | North and South Central Coast | 242 | 
                                                                 
                                    
                                    23.5%
                                 
                                                             | 
                                                        
                    
| 5 | South East | 296 | 
                                                                 
                                    
                                    28.7%
                                 
                                                             | 
                                                        
                    
| 6 | Mekong River Delta | 203 | 
                                                                 
                                    
                                    19.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1 |