| Value | Category | Cases | |
|---|---|---|---|
| Bill collector | 2 | 
                                    
                                    4.5%
                                 | |
| Building guard | 1 | 
                                    
                                    2.3%
                                 | |
| Cheque | 5 | 
                                    
                                    11.4%
                                 | |
| Don't know | 8 | 
                                    
                                    18.2%
                                 | |
| Don't use electricity | 1 | 
                                    
                                    2.3%
                                 | |
| Exchange Companies | 2 | 
                                    
                                    4.5%
                                 | |
| Refused to answer | 1 | 
                                    
                                    2.3%
                                 | |
| The owner of the building | 23 | 
                                    
                                    52.3%
                                 | |
| online | 1 | 
                                    
                                    2.3%
                                 |