| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1970 | 
                                                         
                                
                                32.2%
                                                             
                                                     | 
                                            |
| 1 | 872 | 
                                                         
                                
                                14.3%
                                                             
                                                     | 
                                            |
| 2 | 2169 | 
                                                         
                                
                                35.5%
                                                             
                                                     | 
                                            |
| 3 | 919 | 
                                                         
                                
                                15%
                                                             
                                                     | 
                                            |
| 4 | 144 | 
                                                         
                                
                                2.4%
                                                             
                                                     | 
                                            |
| 5 | 32 | 
                                                         
                                
                                0.5%
                                                             
                                                     | 
                                            |
| 6 | 6+ | 10 | 
                                                         
                                
                                0.2%
                                                             
                                                     |