Year	US Dollars, Sum Over Component Sub-periods
1990-01-01	262279999.99999997
1991-01-01	1162770000.00000000
1992-01-01	1227280000.00000000
1993-01-01	885640000.00000000
1994-01-01	398080000.00000000
1995-01-01	625470000.00000000
1996-01-01	1890120000.00000000
1997-01-01	1735250000.00000000
1998-01-01	4786210000.00000000
1999-01-01	12223910000.00000000
2000-01-01	20864240000.00000000
2001-01-01	5476080000.00000000
2002-01-01	18430020000.00000000
2003-01-01	16832250000.00000000
2004-01-01	-29124380000.00000000
2005-01-01	-44841630000.00000000
2006-01-01	-20831470000.00000000
2007-01-01	4020100000.00000000
2008-01-01	-34823200000.00000000
2009-01-01	-547070000.00000000
2010-01-01	20914640000.00000000
2011-01-01	25218090000.00000000
2012-01-01	19632830000.00000000
2013-01-01	12363940000.00000000