Year	US Dollars, Sum Over Component Sub-periods
1997-01-01	56778232954.14220
1998-01-01	21920927535.41410
1999-01-01	-35329716675.39760
2000-01-01	-93966054834.49810
2001-01-01	-24348371207.88090
2002-01-01	43404435787.88640
2003-01-01	23391295342.64110
2004-01-01	75573548139.94180
2005-01-01	13417430480.03730
2006-01-01	-15845362118.73980
2007-01-01	10134270297.40240
2008-01-01	-206520706166.16100
2009-01-01	-18447966472.55640
2010-01-01	4122951272.00486
2011-01-01	17349246813.44150
2012-01-01	144926201238.19100