Year	Dollars
1970-01-01	9599999.990
1971-01-01	-4876894.677
1972-01-01	-30881067.460
1973-01-01	-37842486.580
1974-01-01	-82805187.380
1975-01-01	-119585027.300
1976-01-01	24341272.560
1977-01-01	4404772.708
1978-01-01	-19366659.980
1979-01-01	-100273035.100
1980-01-01	205446920.200
1981-01-01	166303148.500
1982-01-01	253224245.200
1983-01-01	201196740.600
1984-01-01	290028635.000
1985-01-01	244327180.700
1986-01-01	-56370871.640
1987-01-01	235622484.600
1988-01-01	580389987.700
1989-01-01	912154320.600
1990-01-01	759070540.800
1991-01-01	588557339.400
1992-01-01	806511697.400
1993-01-01	1658648589.000
1994-01-01	1025584573.000
1995-01-01	1671145269.000
1996-01-01	66080661.200
1997-01-01	3434477001.000
1998-01-01	2357907090.000
1999-01-01	2963860801.000
2000-01-01	2879092829.000
2001-01-01	846285501.200
2002-01-01	-80299468.440
2003-01-01	2667070520.000
2004-01-01	2172102650.000
2005-01-01	1629742475.000
2006-01-01	2363691288.000
2007-01-01	3148206291.000
2008-01-01	-349792234.900