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 Private Fixed Investment, by Type," 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-. "March 2015," Economic Indicators (March 2015) : 12-12. https://fraser.stlouisfed.org/title/1/item/492447/toc/504796 , accessed on December 14, 2019.