Year Millions of 2000 Dollars 1960-01-01 47273.7 1961-01-01 54528.1 1962-01-01 66611.0 1963-01-01 75692.0 1964-01-01 91094.9 1965-01-01 105436.0 1966-01-01 116181.0 1967-01-01 112180.0 1968-01-01 126579.0 1969-01-01 141067.0 1970-01-01 155537.0 1971-01-01 198992.0 1972-01-01 243237.0 1973-01-01 308272.0 1974-01-01 331437.0 1975-01-01 347258.0 1976-01-01 343782.0 1977-01-01 324652.0 1978-01-01 409106.0 1979-01-01 454128.0 1980-01-01 392903.0 1981-01-01 339364.0 1982-01-01 295969.0 1983-01-01 221048.0 1984-01-01 201775.0 1985-01-01 243982.0 1986-01-01 359960.0 1987-01-01 453925.0 1988-01-01 465367.0 1989-01-01 513290.0 1990-01-01 629771.0 1991-01-01 693691.0 1992-01-01 594695.0 1993-01-01 512737.0 1994-01-01 577332.0 1995-01-01 651749.0 1996-01-01 598364.0 1997-01-01 516422.0 1998-01-01 578965.0 1999-01-01 657789.0 2000-01-01 661103.0 2001-01-01 672569.0 2002-01-01 826166.0 2003-01-01 1100000.0 2004-01-01 1200000.0 2005-01-01 1100000.0 2006-01-01 1300000.0 2007-01-01 1600000.0 2008-01-01 1700000.0 2009-01-01 1700000.0 2010-01-01 1600000.0 2011-01-01 1400000.0 2012-01-01 1400000.0 2013-01-01 1400000.0 2014-01-01 1300000.0 2015-01-01 1200000.0 2016-01-01 1200000.0