Quarter	US Dollars, sum over component sub-periods
2002-01-01	2266963463.9282100
2002-04-01	2741370974.7969900
2002-07-01	2929423697.8864503
2002-10-01	3027413105.3005200
2003-01-01	2691323626.8629200
2003-04-01	3075994298.0684500
2003-07-01	3182232401.6224403
2003-10-01	3845764121.5854300
2004-01-01	3716695451.2194700
2004-04-01	3861608873.0957800
2004-07-01	3971255763.0004797
2004-10-01	4378459779.1980500
2005-01-01	3951033486.2993197
2005-04-01	4077575490.9148397
2005-07-01	4084108496.5970397
2005-10-01	4105668618.4476104
2006-01-01	4183678019.2040396
2006-04-01	4436804210.1793000
2006-07-01	4522085420.4701000
2006-10-01	4995798203.2112700
2007-01-01	4894393443.5607300
2007-04-01	5056643199.3328000
2007-07-01	5891341607.0700690
2007-10-01	6532412575.0647500
2008-01-01	6512707768.0212390
2008-04-01	7369790078.3497300
2008-07-01	7238132587.0688500
2008-10-01	6009987332.6284290
2009-01-01	4741059653.5634200
2009-04-01	5278425473.3587300
2009-07-01	5725986219.6859500
2009-10-01	6010097082.9460310
2010-01-01	5631937374.5959900
2010-04-01	5288597101.6246605
2010-07-01	5254670060.7010000
2010-10-01	5596232049.9293600
2011-01-01	5293897102.6472600
2011-04-01	5513947474.9992200
2011-07-01	5342872455.4924400
2011-10-01	4768192568.7005800
2012-01-01	4631903239.4498100
2012-04-01	4669047589.5478910
2012-07-01	3935489141.4244900
2012-10-01	4416425589.6837500
2013-01-01	3958484089.0931200
2013-04-01	4038182481.5998797
2013-07-01	4167211560.1642600
2013-10-01	4160924565.2255306
2014-01-01	4112847733.8153195
2014-04-01	4479899053.2682200
2014-07-01	4284831582.0706200
2014-10-01	4093051475.9013500
2015-01-01	3822977593.5811300
2015-04-01	3663230106.1214500
2015-07-01	2126677175.3657198
2015-10-01	2589051120.2628600
2016-01-01	2528295331.1353498
2016-04-01	2600587709.5960100
2016-07-01	2826504127.4105700
2016-10-01	2772431176.0821700
2017-01-01	2748071758.6077300
2017-04-01	2975996426.9507500
2017-07-01	3214580769.8765600
2017-10-01	3362990152.4104500
2018-01-01	3563745091.0305900
2018-04-01	3793995537.0580700