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Indicates the broadest classification of an industry within the North American Industry Classification System (NAICS).
Indicates a group of establishments located within the U.S. that have a common classification within the North American Industry Classification System (NAICS).
Indicates unit of measurement of productivity or related time series that are specific to a particular survey or program.
Indicates the type of comparison or association among values within the same time-series.
Last Modified Date: June 10, 2004