Sources United States-NAICS based

For the period 1998-2005, the BEA publishes detailed Gross output by Industry data, consistent with the GDP by Industry totals. For the period 1977-1997 and a number of industries for 1998-2005, the BLS EMP data is used to distinguish the industries on the AUX list (see comments), with the exception of the distinction in wholesale and retail ... ................
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