Year	Dollars
1971-01-01	-7078971.5618554652
1972-01-01	-25324998.1790947470
1973-01-01	-26085990.6209165600
1974-01-01	-28455311.7721205350
1975-01-01	-19289918.8213675920
1976-01-01	-4005030.9465180337
1977-01-01	11882942.6680739220
1978-01-01	-40073358.9587745820
1979-01-01	-253990588.0614397800
1980-01-01	-1688899095.6048501000
1981-01-01	-809683109.3053330200
1982-01-01	-783801354.7627910400
1983-01-01	-796280190.3561550400
1984-01-01	-701697630.5340919500
1985-01-01	-865715382.8431999700
1986-01-01	-994014138.6882059600
1987-01-01	-1222511659.7971001000
1988-01-01	-1149421447.5022209000
1989-01-01	-1094450128.6581399000
1990-01-01	-3112907666.9741902000
1991-01-01	-2783740817.2041001000
1992-01-01	-1255100256.9090309000
1993-01-01	-1153736940.5564401000
1994-01-01	-1665988707.5821900000
1995-01-01	-2733440731.4556413000
1996-01-01	-2178237001.2730498000
1997-01-01	1511161.2856278401
1998-01-01	719027880.2426979500
1999-01-01	-151230307.0803990400
2000-01-01	6188427985.6280394000
2001-01-01	-326887637.8431079400
2002-01-01	-225484756.7391841400
2003-01-01	352774884.6997561500
2004-01-01	521036209.2179741900
2005-01-01	-1816042875.8515224000
2006-01-01	-341988596.8605080200
2007-01-01	74273771.7010775060
2008-01-01	-180117194.4013980000
2009-01-01	8328087.2279005097
2010-01-01	-752944770.4744999400
2011-01-01	863557033.1444699800