In a release of its estimates for the month of November, the Census Bureau on Jan. 4 included a footnote indicating that it had restated each of its monthly estimates going back to January of 2005.

“In the November 2015 press release,” the footnote reads, “monthly and annual estimates for private residential, total private, total residential and total construction spending for January 2005 through October 2015 have been revised to correct a processing error in the tabulation of data on private residential improvement spending.”

More details here.