| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 392 | 
                                    
                                    17.1%
                                 | 
| 2 | 1 | 1067 | 
                                    
                                    46.6%
                                 | 
| Missing value | 832 | 
                                    
                                    36.3%
                                 |