| Value | Category | Cases | |
|---|---|---|---|
| N1 | 16 | 
                                    
                                    72.7%
                                 | |
| N2 | 5 | 
                                    
                                    22.7%
                                 | |
| N7 | 1 | 
                                    
                                    4.5%
                                 |