( )


 ,  ,     
   0.5   1    ,   
  0.5  10    1.5 .  5%- .

      (60 )  
  0.5  - 60-70 , 3  - 70-75 .

         
    .    0.5    
   ,   4-6 ,   
  4-5 .  .

        .
:
  •       

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