* Some values are not available due to the nondisclosure of confidential information or are not available because the value was less than $500,000. Due to these anomalies, the median value may fluctuate due to the changing number of Metro Areas per year.
Years Available: 2001–2016
Permanent Link: http://data.sagepub.com/sagestats/7350
General Notes: NAICS Industry Code 23. **Values in 2009 dollars. GDP is indexed for inflation to use 2009 chained dollars. Based on the 2007 North American Industry Classification System (NAICS), a set of codes developed by the Office of Management and Budget (OMB] to classify all U.S. businesses. *National Total includes only GDP from metro areas; also known as the "metropolitan portion" of Gross Domestic Product. Median value gives the value for the "average" metro area for this metric, the 50th percentile of all metro areas for which data values were released. Some values were not released due to privacy concerns; others were not released because they are less than $500,000. Neither of those sets of suppressed values are listed or included in national median.