| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 495170 | 
                                    
                                    50.3%
                                 | 
| 2 | No | 463287 | 
                                    
                                    47.1%
                                 | 
| 9 | Unspecified | 26170 | 
                                    
                                    2.7%
                                 |