| Value | Category | Cases | |
|---|---|---|---|
| 1 | CO & RN / CO & RM | 96 | 
                            
                             
                                
                                19.1%
                                                             
                            
                         | 
                        
                    
| 2 | CO only | 94 | 
                            
                             
                                
                                18.7%
                                                             
                            
                         | 
                        
                    
| 3 | RN / RM only | 156 | 
                            
                             
                                
                                31%
                                                             
                            
                         | 
                        
                    
| 4 | Neither CO, RN nor RM | 157 | 
                            
                             
                                
                                31.2%
                                                             
                            
                         |