| Value | Category | Cases | |
|---|---|---|---|
| 0 | 167 | 
                                    
                                    4%
                                 | |
| 1 | 2947 | 
                                    
                                    69.7%
                                 | |
| Missing value | 1113 | 
                                    
                                    26.3%
                                 |