Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	5083100000.00000
1981-01-01	4640600000.00000
1982-01-01	4011800000.00000
1983-01-01	2965600000.00000
1984-01-01	875000000.00000
1985-01-01	2704400000.00000
1986-01-01	-3731300000.00000
1987-01-01	-12584000000.00000
1988-01-01	-23014800000.00000
1989-01-01	-9123700000.00000
1990-01-01	4409500000.00000
1991-01-01	7876500000.00000
1992-01-01	-2633900000.00000
1993-01-01	-5318700000.00000
1994-01-01	601500000.00000
1995-01-01	2190900000.00000
1996-01-01	20499400000.00000
1997-01-01	25209700000.00000
1998-01-01	-66712899999.99999
1999-01-01	-43290200000.00000
2000-01-01	-37154200000.00000
2001-01-01	-18661900000.00000
2002-01-01	-18809200000.00000
2003-01-01	-42196800000.00000
2004-01-01	-74177100000.00000
2005-01-01	-39335200000.00000
2006-01-01	-36264300000.00000
2007-01-01	-39005000000.00000
2008-01-01	55692500000.00000
2009-01-01	-103317600000.00000
2010-01-01	-54449100000.00000
2011-01-01	-40730800000.00000
2012-01-01	-64014600000.00000
2013-01-01	-87332000000.00000