U.S. Department of Commerce

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NOTICE - Upcoming Changes to the Real (chain-weighted dollar) Series

Effective with the release of the January 2012 statistics on March 9, 2012, the U.S. Census Bureau (Census) will begin seasonally adjusting selected export and import prices that previously were not seasonally adjusted. These prices are used in calculating the chain-weighted dollar series (Exhibits 10 and 11). Chain-weighted dollar statistics for 2010 and 2011 will be revised to reflect this new procedure.

This change will improve the overall quality of the chain-weighted dollar series by removing identified seasonal patterns. This change also improves consistency between the Census chain-weighted dollar data and the chain-weighted dollar data published by the Bureau of Economic Analysis (BEA) in the National Income and Product Accounts.For information on recent changes to BEA's seasonal adjustment procedures, see "Annual Revision of the National Income and Product Accounts" in the August 2011 Survey of Current Business, p. 27.

If you have any questions or need additional information, please contact the Special Projects Branch of the U.S. Census Bureau's Foreign Trade Division on (301) 763-3251.

Updated January 13, 2012


March 2012
Trade Numbers

Deficit: $51.8 Billion
Exports: $186.8 Billion
Imports: $238.6 Billion

Next release: June 8, 2012
Complete Release Schedule

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June 5-6, 2012
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June 19-20, 2012
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Call us: (301)763-2311 or 1-800-549-0595 option 4

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Source: U.S. Census Bureau | Foreign Trade | ftdwebmaster@census.gov |  Last Revised: January 13, 2012