Year	Dollars
1948-01-01	415752742.18918562
1949-01-01	163902439.18429500
1950-01-01	-292752023.25221199
1951-01-01	-488233836.34212399
1952-01-01	200925544.40050238
1953-01-01	-450356039.01588398
1954-01-01	-424260029.75649899
1955-01-01	-665249959.98578095
1956-01-01	-1360411092.23907640
1957-01-01	-1479666313.70479010
1958-01-01	-1107461041.85301730
1959-01-01	-1490060445.68208690
1960-01-01	-1187167555.06338640
1961-01-01	-1105881078.18004580
1962-01-01	-1080534821.48463010
1963-01-01	-841519609.22101200
1964-01-01	-453738657.38908702
1965-01-01	-1657802769.71216010
1966-01-01	-1578646691.06352000
1967-01-01	-1278895809.44754000
1968-01-01	-980736864.12291896
1969-01-01	-1945707337.58974000
1970-01-01	493682908.19628698
1971-01-01	-1038623270.01913000
1972-01-01	-2405393534.36044980
1973-01-01	-2056316197.61867000
1974-01-01	-4570143531.44153020
1975-01-01	-8196396521.29975990
1976-01-01	-7638622417.02841000
1977-01-01	-7002598691.95897010
1978-01-01	-8188105389.68253040
1979-01-01	-8384704410.13097950
1980-01-01	-6088042790.74493980
1981-01-01	-12505003518.53800000
1982-01-01	1816196244.73417000
1983-01-01	-2542924980.75210000
1984-01-01	-1368298048.22525000
1985-01-01	-5733953280.64461040
1986-01-01	-11156860361.19879900
1987-01-01	-13430337499.66180000
1988-01-01	-14817781654.61310000
1989-01-01	-21768630268.63560100
1990-01-01	-19764187544.49210000
1991-01-01	-22344721220.87070100
1992-01-01	-21160056407.82389800
1993-01-01	-21822454114.03599900
1994-01-01	-13023978178.63890100
1995-01-01	-4327836905.30109980
1996-01-01	3378291164.29206990
1997-01-01	-8233018153.30193040
1998-01-01	-7839440168.18799970
1999-01-01	1765078961.64191010
2000-01-01	19622378702.63169900
2001-01-01	16281226276.49679900
2002-01-01	12603998627.35510100
2003-01-01	10696356909.18040100
2004-01-01	22945658281.27859900
2005-01-01	21713541986.25030100
2006-01-01	18083700629.11280100
2007-01-01	12003289414.20249900
2008-01-01	6376349030.09541030