| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7 | 
                                    
                                    0.2%
                                 | |
| 2 | 9 | 
                                    
                                    0.3%
                                 | |
| 4 | 1 | 
                                    
                                    0%
                                 | |
| 5 | 5 | 
                                    
                                    0.2%
                                 | |
| 6 | 1 | 
                                    
                                    0%
                                 | |
| Missing value | 3160 | 
                                    
                                    99.3%
                                 |