     2
                             
                               

                                                     

                     

        2010   4                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                             70％                                                 30％    70％                                                                                                                                                                          30 ％       70 ％                                                              5                                5                    30                                                              100％                                   
                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                                                                           
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                     
                           
                                       2020  5 10   