Year Millions of 2000 Dollars 1960-01-01 827.9060000000001 1961-01-01 990.8500000000000 1962-01-01 1158.3400000000000 1963-01-01 1714.8000000000000 1964-01-01 1427.1900000000000 1965-01-01 1456.2800000000000 1966-01-01 1587.0300000000000 1967-01-01 1734.9700000000000 1968-01-01 1736.2000000000000 1969-01-01 1923.1900000000000 1970-01-01 2054.3300000000000 1971-01-01 2143.8700000000000 1972-01-01 2460.2000000000000 1973-01-01 2797.1900000000000 1974-01-01 3368.0800000000000 1975-01-01 3740.6600000000000 1976-01-01 4457.1200000000000 1977-01-01 5967.4300000000000 1978-01-01 6075.5100000000000 1979-01-01 5584.7700000000000 1980-01-01 6421.1900000000000 1981-01-01 4645.7400000000000 1982-01-01 4377.1700000000000 1983-01-01 5176.4700000000000 1984-01-01 5954.1300000000000 1985-01-01 4899.3000000000000 1986-01-01 6198.5800000000000 1987-01-01 4500.1400000000000 1988-01-01 5724.3300000000000 1989-01-01 8386.6100000000000 1990-01-01 11757.3000000000000 1991-01-01 5737.5400000000000 1992-01-01 1483.3400000000000 1993-01-01 1830.0100000000000 1994-01-01 1464.3500000000000 1995-01-01 1874.2700000000000 1996-01-01 1091.0400000000000 1997-01-01 1246.0000000000000 1998-01-01 1153.7300000000000 1999-01-01 1280.1100000000000 2000-01-01 1696.8500000000000 2001-01-01 2050.7200000000000 2002-01-01 2607.9800000000000 2003-01-01 3355.6800000000000 2004-01-01 4413.6700000000000 2005-01-01 6657.8800000000000 2006-01-01 9641.3300000000000 2007-01-01 10022.8000000000000 2008-01-01 10947.6000000000000 2009-01-01 12871.6000000000000 2010-01-01 14448.8000000000000 2011-01-01 15319.6000000000000 2012-01-01 12656.7000000000000 2013-01-01 10968.9000000000000 2014-01-01 12146.8000000000000 2015-01-01 14289.0000000000000 2016-01-01 16587.6000000000000