United States. Office of Management and Budget. "Gross Domestic Product and Implicit Outlay Deflators," in United States. Office of Management and Budget. "Fiscal Year 2006," Historical Tables, Budget of the United States Government (February 7, 2005) : 164-165. https://fraser.stlouisfed.org/title/383/item/6432/toc/408243 , accessed on March 28, 2024.