| Value | Category | Cases | |
|---|---|---|---|
| 0 | 834 | 
                                    
                                    25%
                                 | |
| 1 | 126 | 
                                    
                                    3.8%
                                 | |
| 2 | 266 | 
                                    
                                    8%
                                 | |
| 3 | 375 | 
                                    
                                    11.3%
                                 | |
| 4 | 423 | 
                                    
                                    12.7%
                                 | |
| 5 | 355 | 
                                    
                                    10.7%
                                 | |
| 6 | 219 | 
                                    
                                    6.6%
                                 | |
| 7 | 732 | 
                                    
                                    22%
                                 | |
| Missing value | 13 |