        4   

 400             

      1957       1965

     17.5       

    1973      2003    

      4       

        S301      

   14          14    

 52     50        

          

      2010        3A   

 2011            

           

            

     2013        

   2017   ＋       

    

                   

               

              

           

                  

              

           

              

          

                                      