Quarter	US Dollars, sum over component sub-periods
2005-01-01	442557774091.09900
2005-04-01	468691229354.50100
2005-07-01	499134978150.67300
2005-10-01	467613515941.27203
2006-01-01	460953506296.75300
2006-04-01	510425702129.06195
2006-07-01	549973720551.45200
2006-10-01	540435786178.97504
2007-01-01	525166167347.71893
2007-04-01	584011764505.59610
2007-07-01	644511970630.34900
2007-10-01	645169873051.50710
2008-01-01	638089400394.58600
2008-04-01	704453794865.93900
2008-07-01	721595041109.14800
2008-10-01	613333719680.20900
2009-01-01	535090206571.84200
2009-04-01	577789600906.02700
2009-07-01	636117747915.83000
2009-10-01	628820277059.84900
2010-01-01	586490249129.51200
2010-04-01	608537311656.90200
2010-07-01	657775890839.51000
2010-10-01	662324639650.00300
2011-01-01	633104784753.58000
2011-04-01	700012409959.08400
2011-07-01	739394205743.14400
2011-10-01	687635885927.84000
2012-01-01	654050480663.09800
2012-04-01	692823616874.14810
2012-07-01	723151694486.12200
2012-10-01	711179841389.48790
2013-01-01	679210373452.51390
2013-04-01	719238798099.13600
2013-07-01	761393267873.86600
2013-10-01	757556491908.74400
2014-01-01	731144535066.65600
2014-04-01	786029427171.55400
2014-07-01	814700275206.06200
2014-10-01	768293758603.77300
2015-01-01	690766103018.73600
2015-04-01	761787113684.96090
2015-07-01	760285422118.29800
2015-10-01	748866554675.81000
2016-01-01	688262926860.58500
2016-04-01	761031407646.89800
2016-07-01	786805645077.45500
2016-10-01	769202838309.19700
2017-01-01	714859988463.81400
2017-04-01	780949201055.37900
2017-07-01	842571362429.30700
2017-10-01	845461704102.47100
2018-01-01	804160939610.41400
2018-04-01	846170841395.34290