text: The results of this alternative calculation reduce the overall Base Estimate for the Clear Skies Act by 43 percent for the more extreme adjustment derived from Jones-Lee ( 1989 ) , and by 9 percent for the less extreme adjustment derived from Jones-Lee ( 1993 ) , as summarized in Exhibits 15 and 16 below .
  
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  The new calculations reduce the Base Estimate for the Clear Skies Act more than any other environmental measure .