| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| -7 | Prices are regulated | 43 | 
                                    
                                    11.8%
                                 | 
| -6 | Prices set by HQ | 10 | 
                                    
                                    2.8%
                                 | 
| 1 | Yes | 109 | 
                                    
                                    30%
                                 | 
| 2 | No | 201 | 
                                    
                                    55.4%
                                 |