Year US Dollars, Sum Over Component Sub-periods 1960-01-01 11806140000 1961-01-01 11520030000 1962-01-01 11705710000 1963-01-01 12651640000 1964-01-01 14473590000 1965-01-01 14668950000 1966-01-01 15248210000 1967-01-01 16258390000 1968-01-01 17342130000 1969-01-01 18135470000 1970-01-01 19848120000 1971-01-01 21955110000 1972-01-01 25782330000 1973-01-01 35918670000 1974-01-01 50956570000 1975-01-01 50237890000 1976-01-01 52694600000 1977-01-01 59851940000 1978-01-01 70702780000 1979-01-01 93572420000 1980-01-01 107299160000 1981-01-01 96024210000 1982-01-01 93913860000 1983-01-01 94881830000 1984-01-01 101086360000 1985-01-01 104843580000 1986-01-01 121101020000 1987-01-01 149158750000 1988-01-01 181915150000 1989-01-01 191907760000 1990-01-01 214944090000 1991-01-01 201381450000 1992-01-01 212228480000 1993-01-01 203133850000 1994-01-01 223904370000 1995-01-01 261323340000 1996-01-01 282323100000 1997-01-01 301612810000 1998-01-01 306921790000 1999-01-01 314805220000 2000-01-01 333646210000 2001-01-01 330795870000 2002-01-01 350279350000 2003-01-01 385704980000 2004-01-01 460244240000 2005-01-01 508728360000 2006-01-01 588427570000 2007-01-01 621345010000 2008-01-01 633733320000 2009-01-01 484411670000 2010-01-01 561929220000 2011-01-01 638837760000 2012-01-01 648347380000 2013-01-01 645015710000