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.125-.115*ln(x)/ln(1000),.25-.20*ln(x)/ln(1000),.375-.275*ln(x)/ln(1000),.50-.30*ln(x)/ln(1000),.625-.225*ln(x)/ln(1000),.75-.15*ln(x)/ln(1000),.875-.075*ln(x)/ln(1000) from 1 to 1000
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