| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 19 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    
| -7 | Prices are regulated | 210 | 
                                                                 
                                    
                                    13.8%
                                 
                                                             | 
                                                        
                    
| -6 | Prices set by HQ | 135 | 
                                                                 
                                    
                                    8.9%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 97 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             | 
                                                        
                    
| 2 | No | 1057 | 
                                                                 
                                    
                                    69.6%
                                 
                                                             |