So I have a pivot table:
http://ubuntuone.com/4NJT6l3iRGK077I2kX74yf
I have grouped the monthly dates into quarters and years in the pivot table, and I want to use the pivot table to find the average rate during each quarter of every year. But when I choose average I get the divide by zero error in the pivot table as you can see in the above table.
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