Year	Dollars
1960-01-01	-939680150.46158528
1961-01-01	-257600041.24691841
1962-01-01	-403200064.56039482
1963-01-01	-254240040.70891553
1964-01-01	-534240085.54252219
1965-01-01	-1182720189.37715650
1966-01-01	-790720126.61010551
1967-01-01	-1013600162.29765800
1968-01-01	-1459360233.67276100
1969-01-01	-996800159.60764134
1970-01-01	-902720144.54355097
1971-01-01	-907374523.83941734
1972-01-01	404635090.12200427
1973-01-01	358125553.77988684
1974-01-01	-2847078704.47300050
1975-01-01	-1057815528.74693200
1976-01-01	-1941133707.42995690
1977-01-01	-3082137502.93949840
1978-01-01	-4617345804.21293450
1979-01-01	-2737937277.75079350
1980-01-01	-4447490808.55183410
1981-01-01	-8580746775.91402440
1982-01-01	-8511928607.65257840
1983-01-01	-6330428627.46211810
1984-01-01	-8859566948.34673500
1985-01-01	-9172411917.61984630
1986-01-01	-9807128242.78194430
1987-01-01	-7966023371.07107160
1988-01-01	-11725687122.96653000
1989-01-01	-17877431775.17720000
1990-01-01	-15947724941.26130700
1991-01-01	-10981722940.89718800
1992-01-01	-11095826184.05990600
1993-01-01	-9582550490.86748890
1994-01-01	-16919214836.59732400
1995-01-01	-19276732604.56396100
1996-01-01	-15518858969.36649300
1997-01-01	-11853184129.49128700
1998-01-01	-17782578086.54464000
1999-01-01	-21282445108.83931000
2000-01-01	-14762708210.01062000
2001-01-01	-7411354081.80349830
2002-01-01	-15809339079.03382300
2003-01-01	-28684101777.32250600
2004-01-01	-38853744215.91167400
2005-01-01	-41031814657.75402800
2006-01-01	-41503611842.24137100
2007-01-01	-58031516121.37460300
2008-01-01	-47786269398.63739800