About Constant-Dollar Data
The purchasing power of the dollar changes over time primarily due to inflation. This changing value of the dollars makes it difficult to compare levels of assistance in different time periods. Frequent requests for "constant-dollar data" (i.e., inflation-adjusted values) prompted the inclusion of a set of queries which allow user to obtain the much desired deflated data.
The official deflator for the U.S. Overseas Loans and Grants data is the "GDP Chain Price Index" deflator, produced annually by the Bureau of Economic Analysis (BEA), Department of Commerce from the National Income and Product Accounts data. The deflator is readily available and reported each year by the BEA as well as the Office of Management and Budget (OMB) in their annual Budget of the United States Government. This index is currently used by the Development Assistance Committee (DAC) of the Organization of Economic Cooperation and Development (OECD) to convert U.S. ODA flows into constant dollars.