Data sets released earliest, like the Industry Series (released from April 2009 to December 2009), may be superseded by data in later releases, like the Geographic Area Series (GAS) (released from November 2009 to August 2010).
The Industry Series will still be available in American FactFinder, but the GAS and Subject/Summary Series data sets will have the latest data.
Economy Wide Key Statistics is also a data set that is updated on a frequent basis. It will be considered final in October 2010.
As analysis and processing continue, economic data are occasionally revised and updated in American FactFinder.
Note: Revisions are only applied when data in a particular data set are reissued due to the identification of an error. Preliminary data that are released in one data set and then released later in another data set do not get an '(r)' flag, even if they have changed.
Due to superseding data sets and data revisions, it is advised that you update your saved data sets periodically during the data release period of the 2007 Economic Census.