Year	US Dollars, Sum Over Component Sub-periods
1997-01-01	114009785133.46700
1998-01-01	103565198458.13000
1999-01-01	56417377715.82300
2000-01-01	2974886721.44995
2001-01-01	60765252434.79240
2002-01-01	114826903744.66000
2003-01-01	111610540487.10700
2004-01-01	117004441775.46800
2005-01-01	52418207239.39720
2006-01-01	10184511108.32180
2007-01-01	57781631093.21360
2008-01-01	-32024562301.25340
2009-01-01	42601618486.40260
2010-01-01	24165553777.38530
2011-01-01	12819003476.24560
2012-01-01	136414815449.54100