Year	Dollars
1971-01-01	-298651871.21356827
1972-01-01	-1032630843.72280690
1973-01-01	-1602551546.91630580
1974-01-01	-12636619721.86946900
1975-01-01	-5326624238.83433060
1976-01-01	-10632861192.81384300
1977-01-01	-9295431434.39778520
1978-01-01	-4487931533.66966340
1979-01-01	-9971624132.27607730
1980-01-01	-37566187146.35176100
1981-01-01	-30058758176.76055900
1982-01-01	-9882821380.90431980
1983-01-01	15343182391.84484700
1984-01-01	16920601821.64721900
1985-01-01	12222070634.30218700
1986-01-01	4172411467.11635830
1987-01-01	12396266666.66666600
1988-01-01	5813600000.00000100
1989-01-01	6022133333.33333300
1990-01-01	-1222666666.66666700
1991-01-01	27558400000.00000000
1992-01-01	12059200000.00000000
1993-01-01	18738160000.00000400
1994-01-01	10326933333.33333400
1995-01-01	6533287280.48053360
1996-01-01	5061924060.51211450
1997-01-01	342061094.59335923
1998-01-01	12414080712.89493200
1999-01-01	2403633180.32375670
2000-01-01	-11652047329.69666700
2001-01-01	-11262212688.04477500
2002-01-01	-9137125898.12650300
2003-01-01	-26439851596.01186400
2004-01-01	-47428203202.68476900
2005-01-01	8361436672.96786020
2006-01-01	-7497029372.49656960
2007-01-01	2116035175.59190010
2008-01-01	34729224038.41050000