Year Millions of 2000 Dollars 1960-01-01 1653.12 1961-01-01 1842.32 1962-01-01 2006.55 1963-01-01 2483.74 1964-01-01 2059.68 1965-01-01 2196.77 1966-01-01 2401.86 1967-01-01 2477.89 1968-01-01 2666.55 1969-01-01 2665.62 1970-01-01 2752.88 1971-01-01 3499.60 1972-01-01 3977.47 1973-01-01 4824.89 1974-01-01 6135.34 1975-01-01 6874.66 1976-01-01 7519.41 1977-01-01 8380.42 1978-01-01 9453.98 1979-01-01 9911.42 1980-01-01 9768.11 1981-01-01 8949.58 1982-01-01 8675.72 1983-01-01 8290.79 1984-01-01 7497.89 1985-01-01 9382.70 1986-01-01 8926.85 1987-01-01 9309.47 1988-01-01 9071.30 1989-01-01 9941.42 1990-01-01 10903.80 1991-01-01 10834.20 1992-01-01 10912.20 1993-01-01 10307.80 1994-01-01 11442.10 1995-01-01 12398.60 1996-01-01 12928.80 1997-01-01 12811.40 1998-01-01 14029.70 1999-01-01 14262.80 2000-01-01 14014.30 2001-01-01 14455.20 2002-01-01 16300.80 2003-01-01 18768.90 2004-01-01 20028.30 2005-01-01 18797.90 2006-01-01 21437.70 2007-01-01 24643.80 2008-01-01 26327.90 2009-01-01 28778.10 2010-01-01 29106.30 2011-01-01 29633.00 2012-01-01 30356.20 2013-01-01 30047.50 2014-01-01 28553.10 2015-01-01 27422.00 2016-01-01 25158.00