Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "Real Gross Private Domestic Investment," in Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "January 2007," Economic Indicators (January 2007) : 11-11. https://fraser.stlouisfed.org/title/1/item/138/toc/40103 , accessed on April 26, 2024.