Year US Dollars, Sum Over Component Sub-periods 1971-01-01 32146010000.00000 1972-01-01 38189300000.00000 1973-01-01 51197100000.00000 1974-01-01 67747780000.00000 1975-01-01 73849720000.00000 1976-01-01 86243630000.00000 1977-01-01 98781550000.00000 1978-01-01 117925110000.00000 1979-01-01 155189310000.00000 1980-01-01 184134970000.00000 1981-01-01 159815000000.00000 1982-01-01 151491240000.00000 1983-01-01 149059080000.00000 1984-01-01 149112830000.00000 1985-01-01 154137560000.00000 1986-01-01 186226740000.00000 1987-01-01 222431190000.00000 1988-01-01 245701540000.00000 1989-01-01 264916460000.00003 1990-01-01 340622280000.00000 1991-01-01 383928210000.00000 1992-01-01 402193580000.00000 1993-01-01 338500460000.00000 1994-01-01 374660200000.00000 1995-01-01 454479310000.00000 1996-01-01 449381930000.00000 1997-01-01 436619790000.00000 1998-01-01 461342620000.00000 1999-01-01 469088820000.00000 2000-01-01 489021520000.00000 2001-01-01 477742230000.00000 2002-01-01 483726400000.00000 2003-01-01 600754730000.00000 2004-01-01 719271680000.00000 2005-01-01 788680620000.00000 2006-01-01 934923030000.00000 2007-01-01 1078653610000.00010 2008-01-01 1227391430000.00000 2009-01-01 986030910000.00000 2010-01-01 1127427810000.00000 2011-01-01 1362869680000.00000 2012-01-01 1284769180000.00000 2013-01-01 1309766440000.00000