Planned changes
Additional comments about planned changes to this page, inflation conversion factors, and related topics
I have been revising the tables regularly but the graphs much less often.
Beginning in early 2011 I plan to revise graphs that use these conversion factors (available in the GRAPHS section), using the final 2010 CPI. I also will update budget trend graphs to include final 2010 budget data. However, unlike some previous versions of this page, I will not include estimates for years after the current budget year because these trends often are very unpredictable.
Beginning with the 2008 revision, I have used a new set of underlying price-level data to produce inflation conversion factors for years prior to 1913. Conversion factors for years before 1913 now are re-based from data from the Historical Statistics of the United States Millennial Edition (Cambridge University Press, 2006). As part of this change, the conversion factors begin 1774 instead of 1665, as with the earlier underlying price level data.
Note to users of Firefox and other non-Internet-Explorer web browsers: In forthcoming revisions, I will attempt to make all graphs accessible to users of non-Internet-Explorer browsers. In the interim, users of Firefox and other browsers who have difficulty viewing items on this page can open pages using the “view this item in IE” or similar.
The Excel and pdf files on this page should be accessible to users of all web browsers.

