| Value | Category | Cases | |
|---|---|---|---|
| 1 | 158 | 
                                                                 
                                    
                                    7.7%
                                 
                                                             | 
                                                        
                    |
| 2 | 428 | 
                                                                 
                                    
                                    20.8%
                                 
                                                             | 
                                                        
                    |
| Missing value | 1476 | 
                                                                 
                                    
                                    71.6%
                                 
                                                             |