Quarter	US Dollars, Sum Over Component Sub-periods
1997-01-01	-15768525328.37870
1997-04-01	-11090032638.80320
1997-07-01	-9718521338.12135
1997-10-01	-13943691647.30390
1998-01-01	-8369046033.30726
1998-04-01	-8021522587.54749
1998-07-01	-17847660228.44190
1998-10-01	-59065341222.61180
1999-01-01	-19512459776.99620
1999-04-01	-48309849232.06990
1999-07-01	-18282298657.71810
1999-10-01	-46237675142.70890
2000-01-01	140817454832.65900
2000-04-01	-12217033993.27610
2000-07-01	-76334307316.92620
2000-10-01	-51335284911.01970
2001-01-01	-38750422881.74690
2001-04-01	-52295750444.17910
2001-07-01	-21779039015.83810
2001-10-01	14892518062.93660
2002-01-01	-6184618081.93560
2002-04-01	10762368953.46700
2002-07-01	-15048693314.09650
2002-10-01	33239403741.62140
2003-01-01	10068706387.54700
2003-04-01	5531785998.25830
2003-07-01	-20720048028.21660
2003-10-01	-6490956687.29177
2004-01-01	-53577947243.40540
2004-04-01	-20555622514.16170
2004-07-01	-4196283012.71601
2004-10-01	-20590267282.69790
2005-01-01	-36235093696.76320
2005-04-01	-32033727661.71660
2005-07-01	-131169512195.12200
2005-10-01	-51616317792.57850
2006-01-01	-45542502004.81150
2006-04-01	-6686497130.16884
2006-07-01	-65840166546.28880
2006-10-01	-83631868604.35120
2007-01-01	-28087142732.27860
2007-04-01	-89766783499.59560
2007-07-01	-37802474793.76720
2007-10-01	36417910447.76120
2008-01-01	-106162604874.15100
2008-04-01	-84612340536.31870
2008-07-01	-84204238728.38150
2008-10-01	-65302075124.77020
2009-01-01	-74979834338.00250
2009-04-01	32595551520.65370
2009-07-01	-44222571878.12900
2009-10-01	-3592911641.64410
2010-01-01	-79336715867.15870
2010-04-01	-40114786733.87270
2010-07-01	-93011243699.65110
2010-10-01	89343075600.59720
2011-01-01	-46274894043.65860
2011-04-01	-66747265400.11510
2011-07-01	-54959288370.12280
2011-10-01	-48096200485.04450
2012-01-01	-4561112082.53191
2012-04-01	-20908313742.25260
2012-07-01	-32129718456.72580
2012-10-01	-4681173213.35871