Year	Dollars
1948-01-01	39880358.962991379
1949-01-01	-43902439.067221887
1950-01-01	852484964.457617040
1951-01-01	477507516.973799710
1952-01-01	244574099.991060790
1953-01-01	586710712.055799600
1954-01-01	634137068.967257980
1955-01-01	619991754.638039950
1956-01-01	1422900268.641462600
1957-01-01	1150688641.251652200
1958-01-01	1170658518.086795800
1959-01-01	1207596304.386626200
1960-01-01	1128973690.013730000
1961-01-01	1276465416.604073500
1962-01-01	1385175333.904089900
1963-01-01	932988833.035811900
1964-01-01	677936280.741338010
1965-01-01	2001660411.177679100
1966-01-01	1356106364.353610000
1967-01-01	1612351012.253774200
1968-01-01	1851199977.978770000
1969-01-01	2044165634.556940100
1970-01-01	1034546206.759340500
1971-01-01	2855747748.366608100
1972-01-01	3829560359.842082500
1973-01-01	1995136373.466779900
1974-01-01	4934081782.085720100
1975-01-01	7872655509.218452500
1976-01-01	10699073286.208099000
1977-01-01	6620628078.054700900
1978-01-01	5084056832.110699700
1979-01-01	9168653481.367799800
1980-01-01	5007614793.407670000
1981-01-01	16663093411.851400000
1982-01-01	-2785600895.359849900
1983-01-01	4187377530.717157400
1984-01-01	4091898334.989130000
1985-01-01	5650474972.372150400
1986-01-01	10801472391.579599000
1987-01-01	16280381927.364500000
1988-01-01	18716371075.573700000
1989-01-01	19394541904.779301000
1990-01-01	17282840122.683598000
1991-01-01	15068469274.819000000
1992-01-01	6243976190.079239800
1993-01-01	19504867120.816601000
1994-01-01	5159352701.300820400
1995-01-01	-1277352823.261770000
1996-01-01	-9276825428.835750600
1997-01-01	3393605307.481349900
1998-01-01	4944355643.512459800
1999-01-01	-5968160608.418520000
2000-01-01	-14500018845.290844000
2001-01-01	-11609370581.248970000
2002-01-01	-14359916355.417500000
2003-01-01	-18070103016.305145000
2004-01-01	-31510243286.049099000
2005-01-01	-22949869016.266800000
2006-01-01	-22961003156.753799000
2007-01-01	-13144916041.507601000
2008-01-01	-6001184046.236379600