| Value | Category | Cases | |
|---|---|---|---|
| 0 | 403675 | 
                                    
                                    77.7%
                                 | |
| 1 | 112685 | 
                                    
                                    21.7%
                                 | |
| 2 | 1945 | 
                                    
                                    0.4%
                                 | |
| 3 | 35 | 
                                    
                                    0%
                                 | |
| 9 | Not Stated | 1054 | 
                                    
                                    0.2%
                                 |