Year	US Dollars, Sum Over Component Sub-periods
1960-01-01	-17897163.3913254
1961-01-01	-23446077.9892456
1962-01-01	-16812435.1495340
1963-01-01	-17964977.8371121
1964-01-01	-22335211.5074732
1965-01-01	-45904502.0280553
1966-01-01	-33387359.8315861
1967-01-01	-53400084.4277585
1968-01-01	-58962603.7723400
1969-01-01	-106656510.0042330
1970-01-01	-111364775.3215660
1971-01-01	-104499933.7409840
1972-01-01	-128774555.1017970
1973-01-01	-256404168.9418580
1974-01-01	-242406752.7595410
1975-01-01	-161914895.9510310
1976-01-01	-268426213.4335680
1977-01-01	-266560536.0828560
1978-01-01	-236085112.8853570
1979-01-01	-343170131.9025260
1980-01-01	-460591320.2097740
1981-01-01	-733762064.0412500
1982-01-01	-692668497.7815340
1983-01-01	-518442268.8235870
1984-01-01	-1401791323.9140300
1985-01-01	-1886513512.0977400
1986-01-01	-3418468240.1305700
1987-01-01	-5097254705.2613800
1988-01-01	-6862363590.2207900
1989-01-01	-3024884537.5903400
1990-01-01	-669362493.3362810
1991-01-01	1185335176.4957800
1992-01-01	-3926471937.6051400
1993-01-01	-2518626635.6647000
1994-01-01	-1759582199.6603500
1995-01-01	-4049472975.7266300
1996-01-01	-5030216803.9366700
1997-01-01	-6154930361.0838100
1998-01-01	-4710167681.9694800
1999-01-01	-309098730.9098730
2000-01-01	-4027743589.0010300
2001-01-01	-13367951947.2970000
2002-01-01	-7027068615.1604200
2003-01-01	-17662837527.3671000
2004-01-01	-9726806778.3309200
2005-01-01	32267320070.5879000
2006-01-01	-24046689676.8121000
2007-01-01	-15077916373.2456000
2008-01-01	-30526096033.4029000
2009-01-01	-11933628404.8589000
2010-01-01	-19606793964.3179000
2011-01-01	-8704160683.7312900
2012-01-01	-6212483285.1658600
2013-01-01	-6360632010.6139200