Year	Dollars
1971-01-01	971732954.09787869
1972-01-01	2089388576.31764150
1973-01-01	2519836944.14112810
1974-01-01	23025352119.16207100
1975-01-01	14384756710.52020600
1976-01-01	14359773375.17274100
1977-01-01	11991268249.51916500
1978-01-01	-2212049887.47434040
1979-01-01	10205792013.16115000
1980-01-01	41503072337.99931300
1981-01-01	39627396837.07717900
1982-01-01	7575468455.19732860
1983-01-01	-16852115359.35265000
1984-01-01	-18400533704.24496500
1985-01-01	-12931596758.76924700
1986-01-01	-11785497470.48903700
1987-01-01	-9760000000.00000000
1988-01-01	-7330666666.66666030
1989-01-01	-9525333333.33332820
1990-01-01	-4146666666.66667180
1991-01-01	-27509333333.33332800
1992-01-01	-17716533333.33333600
1993-01-01	-17244800000.00000000
1994-01-01	-10472799999.99999200
1995-01-01	-5318133333.33329960
1996-01-01	679466666.66670001
1997-01-01	305066666.66670001
1998-01-01	-13132000000.00000000
1999-01-01	410986666.66670001
2000-01-01	14316800000.00009900
2001-01-01	9353446133.33349990
2002-01-01	11873093333.33340100
2003-01-01	28047946666.66659900
2004-01-01	51925973333.33329800
2005-01-01	90060713888.57960500
2006-01-01	99066129916.04879800
2007-01-01	93379454661.48019400
2008-01-01	132313570234.36600000