| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 2 | 
                                    
                                    0%
                                 | 
| 0 | No | 17171 | 
                                    
                                    67.6%
                                 | 
| 1 | Yes | 7292 | 
                                    
                                    28.7%
                                 | 
| 9 | Can't determine | 932 | 
                                    
                                    3.7%
                                 |