| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -7 | Prices are regulated | 77 | 
                                                                 
                                    
                                    19.6%
                                 
                                                             | 
                                                        
                    
| -6 | Prices set by HQ | 13 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 51 | 
                                                                 
                                    
                                    13%
                                 
                                                             | 
                                                        
                    
| 2 | No | 251 | 
                                                                 
                                    
                                    64%
                                 
                                                             |