Year	US Dollars, Sum Over Component Sub-periods
1975-01-01	27550000.00000000
1976-01-01	50890000.00000000
1977-01-01	97600000.00000000
1978-01-01	259170000.00000003
1979-01-01	246260000.00000000
1980-01-01	174230000.00000000
1981-01-01	301120000.00000000
1982-01-01	177900000.00000000
1983-01-01	-5340000.00000000
1984-01-01	-306040000.00000000
1985-01-01	-519120000.00000000
1986-01-01	-752830000.00000000
1987-01-01	-1241510000.00000000
1988-01-01	-1808070000.00000000
1989-01-01	-2272570000.00000000
1990-01-01	-3225990000.00000000
1991-01-01	-3564640000.00000000
1992-01-01	-2912010000.00000000
1993-01-01	-2224150000.00000000
1994-01-01	-1820290000.00000000
1995-01-01	-2167470000.00000000
1996-01-01	-2103940000.00000000
1997-01-01	-2254640000.00000000
1998-01-01	-1948810000.00000000
1999-01-01	-2017980000.00000000
2000-01-01	-1721760000.00000000
2001-01-01	-29490000.00000000
2002-01-01	549800000.00000000
2003-01-01	-700810000.00000000
2004-01-01	580990000.00000000
2005-01-01	-753300000.00000000
2006-01-01	-1268740000.00000000
2007-01-01	639470000.00000000
2008-01-01	987920000.00000000
2009-01-01	540150000.00000000
2010-01-01	380640000.00000000
2011-01-01	185090000.00000000
2012-01-01	-1307350000.00000000
2013-01-01	558270000.00000000