Year	US Dollars, Sum Over Component Sub-periods
1960-01-01	388000000.0000000
1961-01-01	354000000.0000000
1962-01-01	299100000.0000000
1963-01-01	532500000.0000000
1964-01-01	513100000.0000000
1965-01-01	220600000.0000000
1966-01-01	244500000.0000000
1967-01-01	588900000.0000000
1968-01-01	803200000.0000000
1969-01-01	819800000.0000000
1970-01-01	779600000.0000000
1971-01-01	847600000.0000000
1972-01-01	1696900000.0000000
1973-01-01	1364400000.0000000
1974-01-01	1959000000.0000000
1975-01-01	3014200000.0000000
1976-01-01	1856500000.0000000
1977-01-01	4210399999.9999995
1978-01-01	4205399999.9999995
1979-01-01	4041700000.0000000
1980-01-01	-142200000.0000000
1981-01-01	-9221000000.0000000
1982-01-01	-7405800000.0000000
1983-01-01	-3080900000.0000000
1984-01-01	-2136100000.0000000
1985-01-01	-2906600000.0000000
1986-01-01	-739200000.0000000
1987-01-01	3103400000.0000000
1988-01-01	-3914000000.0000000
1989-01-01	4142100000.0000005
1990-01-01	2703000000.0000000
1991-01-01	-2445100000.0000000
1992-01-01	-1027800000.0000000
1993-01-01	-3001400000.0000000
1994-01-01	-3705000000.0000000
1995-01-01	-4164300000.0000000
1996-01-01	163400000.0000000
1997-01-01	1602700000.0000000
1998-01-01	-943900000.0000000
1999-01-01	-53200000.0000000
2000-01-01	1439100000.0000000
2001-01-01	-3412700000.0000000
2002-01-01	-1079000000.0000000
2003-01-01	-4435300000.0000000
2004-01-01	-4563000000.0000000
2005-01-01	3679400000.0000000
2006-01-01	-374900000.0000000
2007-01-01	460500000.0000000
2008-01-01	-4950000000.0000000
2009-01-01	-3620800000.0000000
2010-01-01	-23462500000.0000000
2011-01-01	-11240600000.0000000
2012-01-01	-20473500000.0000000
2013-01-01	-21056000000.0000000
2014-01-01	-18675800000.0000000
2015-01-01	-17565200000.0000000
2016-01-01	-8150300000.0000000