| Value | Category | Cases | |
|---|---|---|---|
| 0 | 323 | 
                                    
                                    32.7%
                                 | |
| 1 | 453 | 
                                    
                                    45.9%
                                 | |
| 2 | 158 | 
                                    
                                    16%
                                 | |
| 3 | 36 | 
                                    
                                    3.6%
                                 | |
| 4 | 12 | 
                                    
                                    1.2%
                                 | |
| 5 | 4 | 
                                    
                                    0.4%
                                 | |
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| 8 | 1 | 
                                    
                                    0.1%
                                 |