| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1404 | 
                                    
                                    42.1%
                                 | |
| 1 | 18 | 
                                    
                                    0.5%
                                 | |
| 2 | 46 | 
                                    
                                    1.4%
                                 | |
| 3 | 76 | 
                                    
                                    2.3%
                                 | |
| 4 | 114 | 
                                    
                                    3.4%
                                 | |
| 5 | 172 | 
                                    
                                    5.2%
                                 | |
| 6 | 185 | 
                                    
                                    5.6%
                                 | |
| 7 | 1317 | 
                                    
                                    39.5%
                                 | |
| Missing value | 11 |