| Value | Category | Cases | |
|---|---|---|---|
| 0 | 525 | 
                                    
                                    64.7%
                                 | |
| 1 | 277 | 
                                    
                                    34.2%
                                 | |
| Missing value | 9 | 
                                    
                                    1.1%
                                 |