| Value | Category | Cases | |
|---|---|---|---|
| N1 | 3 | 
                                    
                                    9.1%
                                 | |
| N2 | 9 | 
                                    
                                    27.3%
                                 | |
| N3 | 2 | 
                                    
                                    6.1%
                                 | |
| N4 | 1 | 
                                    
                                    3%
                                 | |
| N6 | 13 | 
                                    
                                    39.4%
                                 | |
| N7 | 3 | 
                                    
                                    9.1%
                                 | |
| N8 | 2 | 
                                    
                                    6.1%
                                 |