Quarter	US Dollars, sum over component sub-periods
2003-01-01	31709739645.1045000
2003-04-01	21516057604.8791000
2003-07-01	2430293510.8252000
2003-10-01	67047422945.2271960
2004-01-01	52059989463.5494000
2004-04-01	26177947791.3984000
2004-07-01	25238504144.0443000
2004-10-01	36271264443.0608000
2005-01-01	85837676756.0789000
2005-04-01	11181869826.1661990
2005-07-01	33353349472.0599980
2005-10-01	36098246882.5328100
2006-01-01	43253793621.2015000
2006-04-01	8354514896.6180700
2006-07-01	14180586918.8699000
2006-10-01	99650243839.6290900
2007-01-01	58859899507.5735000
2007-04-01	81843205885.0156100
2007-07-01	27552505438.8995000
2007-10-01	153917435425.5160200
2008-01-01	86383644924.9064000
2008-04-01	68732118108.8314000
2008-07-01	91282643720.2851000
2008-10-01	-105131437066.1949900
2009-01-01	-74272264375.2253900
2009-04-01	-32527139430.1272000
2009-07-01	-4043807904.8344197
2009-10-01	5119657637.9788400
2010-01-01	-16155496031.5499000
2010-04-01	58230478322.6939000
2010-07-01	-25362247895.0459980
2010-10-01	28866133156.8876000
2011-01-01	5274755945.7678500
2011-04-01	22997090252.0328030
2011-07-01	111946168013.0190100
2011-10-01	16177363145.6309000
2012-01-01	-13654410115.8413000
2012-04-01	7614612630.2486600
2012-07-01	4701314055.4314190
2012-10-01	-53244987560.3747000
2013-01-01	6725464467.3692100
2013-04-01	-31803952067.2446020
2013-07-01	34980204348.6388000
2013-10-01	-18096006573.3312000
2014-01-01	33530467396.0431980
2014-04-01	13560367841.3742000
2014-07-01	-7267657153.2678500
2014-10-01	-20541424597.3317000
2015-01-01	70847790003.5420000
2015-04-01	-53240713885.3447950
2015-07-01	14082982988.7783000
2015-10-01	-51398026677.4078000
2016-01-01	115392324705.5540000
2016-04-01	10091816048.9186000
2016-07-01	-33134707287.5363000
2016-10-01	-1694921974.3401700
2017-01-01	9193626651.1312600
2017-04-01	-6978084748.3379600
2017-07-01	-18241013495.4157000
2017-10-01	-20061366675.9863000
2018-01-01	287557362.5176410
2018-04-01	-5062631407.3773300