| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 8 | 
                                    
                                    0%
                                 | 
| 0 | No | 23071 | 
                                    
                                    90.8%
                                 | 
| 1 | Yes | 2248 | 
                                    
                                    8.9%
                                 | 
| 9 | Can't determine | 70 | 
                                    
                                    0.3%
                                 |