| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 3 | 
                                    
                                    0.2%
                                 | 
| 2 | Yes | 11 | 
                                    
                                    0.6%
                                 | 
| Missing value | 1947 | 
                                    
                                    99.3%
                                 |