| Value | Category | Cases | |
|---|---|---|---|
| N1 | 975 | 
                                    
                                    52.9%
                                 | |
| N2 | 603 | 
                                    
                                    32.7%
                                 | |
| N3 | 200 | 
                                    
                                    10.9%
                                 | |
| N4 | 49 | 
                                    
                                    2.7%
                                 | |
| N5 | 12 | 
                                    
                                    0.7%
                                 | |
| N6 | 3 | 
                                    
                                    0.2%
                                 | |
| N7 | 1 | 
                                    
                                    0.1%
                                 |