| Value | Category | Cases | |
|---|---|---|---|
| 1 | poorest | 1412 | 
                                    
                                    17.1%
                                 | 
| 2 | poorer | 1420 | 
                                    
                                    17.2%
                                 | 
| 3 | middle | 1451 | 
                                    
                                    17.6%
                                 | 
| 4 | richer | 1661 | 
                                    
                                    20.2%
                                 | 
| 5 | richest | 2295 | 
                                    
                                    27.9%
                                 |