Quarter	US Dollars, sum over component sub-periods
2005-01-01	165905691890.39800
2005-04-01	130414516965.26900
2005-07-01	138714353637.01600
2005-10-01	137297320191.52600
2006-01-01	155501624575.29000
2006-04-01	135927474205.84300
2006-07-01	146191012909.37500
2006-10-01	151832259779.77500
2007-01-01	178787737068.76000
2007-04-01	146233470014.24600
2007-07-01	157042595109.18298
2007-10-01	180918087705.95700
2008-01-01	217700159227.63998
2008-04-01	178732402902.20700
2008-07-01	169091628368.18400
2008-10-01	184988831283.93700
2009-01-01	193983999141.14600
2009-04-01	164640535386.99700
2009-07-01	165503262104.99902
2009-10-01	189576421364.96500
2010-01-01	207094870928.85500
2010-04-01	158791813330.01200
2010-07-01	175065123205.14000
2010-10-01	188227220463.75803
2011-01-01	220692659008.24002
2011-04-01	185196427365.18903
2011-07-01	189464672016.78400
2011-10-01	196391790207.84500
2012-01-01	227120029300.64700
2012-04-01	185109313515.52200
2012-07-01	182327433531.25600
2012-10-01	195815147773.14600
2013-01-01	240978836201.69598
2013-04-01	201932304406.75198
2013-07-01	204682598148.39600
2013-10-01	207891053050.41700
2014-01-01	253839592401.17400
2014-04-01	228746199603.07400
2014-07-01	200573144995.37400
2014-10-01	214926452352.01100
2015-01-01	234609118114.68000
2015-04-01	197837394827.57900
2015-07-01	189034299449.58000
2015-10-01	206644002407.68200
2016-01-01	226590514720.82200
2016-04-01	197201946331.62698
2016-07-01	210660609108.95900
2016-10-01	212096866079.76200
2017-01-01	221484638882.16498
2017-04-01	219492807866.76900
2017-07-01	228097958479.50403
2017-10-01	225504136571.58102
2018-01-01	241472389410.62800
2018-04-01	217273441479.77500