| Value | Category | Cases | |
|---|---|---|---|
| N01 | 502 | 
                                    
                                    90.5%
                                 | |
| N02 | 43 | 
                                    
                                    7.7%
                                 | |
| N03 | 8 | 
                                    
                                    1.4%
                                 | |
| N04 | 2 | 
                                    
                                    0.4%
                                 |