Year US Dollars, Sum Over Component Sub-periods 1960-01-01 11806100000 1961-01-01 11520000000 1962-01-01 11705700000 1963-01-01 12651600000 1964-01-01 14473600000 1965-01-01 14669000000 1966-01-01 15248200000 1967-01-01 16258400000 1968-01-01 17342100000 1969-01-01 18135500000 1970-01-01 19848100000 1971-01-01 21955100000 1972-01-01 25782300000 1973-01-01 35918700000 1974-01-01 50956600000 1975-01-01 50237900000 1976-01-01 52694600000 1977-01-01 59851900000 1978-01-01 70702800000 1979-01-01 93572400000 1980-01-01 107299200000 1981-01-01 96024200000 1982-01-01 93913900000 1983-01-01 94881800000 1984-01-01 101086400000 1985-01-01 104843600000 1986-01-01 121101000000 1987-01-01 149158800000 1988-01-01 181915100000 1989-01-01 191907800000 1990-01-01 214944100000 1991-01-01 201381400000 1992-01-01 212228500000 1993-01-01 203133900000 1994-01-01 223904400000 1995-01-01 261323300000 1996-01-01 282323100000 1997-01-01 301612800000 1998-01-01 306921800000 1999-01-01 314805200000 2000-01-01 333646200000 2001-01-01 330795900000 2002-01-01 350279400000 2003-01-01 385705000000 2004-01-01 460244200000 2005-01-01 508728400000 2006-01-01 588427600000 2007-01-01 621345000000 2008-01-01 633733300000 2009-01-01 484411700000 2010-01-01 561929200000 2011-01-01 638837800000 2012-01-01 648347400000 2013-01-01 645015700000