Year	Dollars
1975-01-01	-3893003630.86506990
1976-01-01	-4622445702.05879020
1977-01-01	-2455212500.71748020
1978-01-01	1250840554.60809990
1979-01-01	756532365.65441096
1980-01-01	-5579999645.38267040
1981-01-01	-5363207814.04032990
1982-01-01	-4548243515.82320980
1983-01-01	-3013194547.95633980
1984-01-01	1777600859.88875010
1985-01-01	2785470118.45280980
1986-01-01	3914233942.91316990
1987-01-01	-263468751.52085799
1988-01-01	-3795489189.94646980
1989-01-01	-10924451313.44319900
1990-01-01	-18009410031.97990000
1991-01-01	-19797681590.78939800
1992-01-01	-21537215134.76900100
1993-01-01	-5803781134.44071960
1994-01-01	-6389349435.88916020
1995-01-01	-1966861256.45138000
1996-01-01	-2233973438.88585000
1997-01-01	-829666961.15812504
1998-01-01	-7251485437.82915970
1999-01-01	-18079535318.82199900
2000-01-01	-23185116515.47370100
2001-01-01	-24064476076.20769900
2002-01-01	-22239359222.93610000
2003-01-01	-30885476720.02830100
2004-01-01	-54865376329.39930000
2005-01-01	-83388150703.74079900
2006-01-01	-110874177584.45500000
2007-01-01	-144539983137.02499000
2008-01-01	-154529131266.70401000