| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 20837 | 
                                    
                                    84.8%
                                 | 
| 2 | No | 3487 | 
                                    
                                    14.2%
                                 | 
| 9 | Not Stated | 261 | 
                                    
                                    1.1%
                                 | 
| Sysmiss | 86 |