Year	US Dollars, Sum Over Component Sub-periods
1997-01-01	-19791434826.18620
1998-01-01	-33940803246.56470
1999-01-01	-38870223177.54700
2000-01-01	-44407902689.99930
2001-01-01	-36452243587.57580
2002-01-01	-40223932542.53540
2003-01-01	-49517178902.95560
2004-01-01	-8568030893.15127
2005-01-01	-233278175.92917
2006-01-01	19927378695.42920
2007-01-01	6839594272.58703
2008-01-01	-97280845259.44730
2009-01-01	13542100052.71900
2010-01-01	54315873650.43700
2011-01-01	60520333139.55560
2012-01-01	36146135525.47520