            
                                                                                                                                               
                
                                      100             100％                        80％                     60％                                                             
                                                                              
                                                                                        
⒈                                                                                                                                                                                                                                                                     
⒉                                                                                                                                          
⒊                                                                                                                                                                                                                                                                     
⒋                                                     
⑴                                                                                                                          
⑵                                                                                                                                                                                                                                                                          
                            2  6 .7                                           6.7  11.12                                                     11.12  16.17                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
                          
⒈                                                                                                
                                                                                                                                                                                           
⒉                                                                                                                                                                                                                         
                                                                                             
⒊                                                                                                                                                                                                                                                              
                                                                               