| Value | Category | Cases | |
|---|---|---|---|
| 0 | 409 | 
                                    
                                    14.8%
                                 | |
| 1 | 509 | 
                                    
                                    18.4%
                                 | |
| 2 | 545 | 
                                    
                                    19.7%
                                 | |
| 3 | 433 | 
                                    
                                    15.6%
                                 | |
| 4 | 231 | 
                                    
                                    8.3%
                                 | |
| 5 | 148 | 
                                    
                                    5.3%
                                 | |
| 6 | 123 | 
                                    
                                    4.4%
                                 | |
| 7 | 369 | 
                                    
                                    13.3%
                                 | |
| Missing value | 576 |