Year Millions of 2000 Dollars 1966-01-01 348.14400000000000 1967-01-01 348.42400000000004 1968-01-01 436.42500000000000 1969-01-01 444.59600000000000 1970-01-01 484.73300000000000 1971-01-01 592.41000000000000 1972-01-01 605.98200000000000 1973-01-01 565.02000000000000 1974-01-01 610.72700000000000 1975-01-01 681.73300000000010 1976-01-01 734.02199999999990 1977-01-01 753.79700000000000 1978-01-01 857.80200000000000 1979-01-01 958.10200000000000 1980-01-01 971.86200000000000 1981-01-01 1022.74000000000000 1982-01-01 1071.25000000000000 1983-01-01 1147.98000000000000 1984-01-01 1186.32000000000000 1985-01-01 1247.23000000000000 1986-01-01 1337.94000000000000 1987-01-01 1511.90000000000000 1988-01-01 1608.68000000000000 1989-01-01 1578.44000000000000 1990-01-01 1689.22000000000000 1991-01-01 1626.96000000000000 1992-01-01 1665.34000000000000 1993-01-01 1678.88000000000000 1994-01-01 1758.67000000000000 1995-01-01 1796.68000000000000 1996-01-01 2050.95000000000000 1997-01-01 2140.60000000000000 1998-01-01 2273.84000000000000 1999-01-01 2372.33000000000000 2000-01-01 2514.86000000000000 2001-01-01 3278.22000000000000 2002-01-01 3686.20000000000000 2003-01-01 3789.22000000000000 2004-01-01 4107.29000000000000 2005-01-01 4644.51000000000000 2006-01-01 4761.35000000000000 2007-01-01 5519.19000000000000 2008-01-01 5564.73000000000000 2009-01-01 5555.77000000000000