                  
  
2019/1/23

     1   21                    2018              2019         
                                                                                                                                                         
               2018                                                                                        2019                                                                                                                                                                                                                                                                                                                                                                                                                                    
                                                              70                                                                                                                                                                                                                                                                                                                                                        
          2018       23.5          10            13             1.06%                                                                                                           2020                                                                                           2019                                                                                                                              

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