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["2007 ICB proposed revisions","estimated CY2007 volume","avg time burden (hours)","total time burden (hours)*"]
["8903 business",300000,31.883333333333333,8700000]
["8913 business & tax exempt",2400000,28.19,67600000]
[]
["Source: volumes -- IRS:RAS:R, avg burden -- IRS Forms & Pubs"]
["* Total may not match product of components due to independent rounding."]