Year	US Dollars, Sum Over Component Sub-periods
1997-01-01	55304945472.2981
1998-01-01	102223100853.9210
1999-01-01	219890434798.0500
2000-01-01	405825051839.3360
2001-01-01	200040300011.1940
2002-01-01	184189180698.6680
2003-01-01	154292169950.7620
2004-01-01	111681765942.2470
2005-01-01	191814820568.5880
2006-01-01	324325342035.8980
2007-01-01	578415907094.5370
2008-01-01	157086150809.6060
2009-01-01	397136274702.7570
2010-01-01	346583521880.6910
2011-01-01	351978215527.2310
2012-01-01	209503224009.7680