| Value | Category | Cases | |
|---|---|---|---|
| 1 | 5 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 2 | 4 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 3 | 4 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| Missing value | 467 | 
                                                                 
                                    
                                    97.3%
                                 
                                                             |