Quarter	US Dollars, sum over component sub-periods
2005-01-01	2728041224516.8500
2005-04-01	2861081232257.3300
2005-07-01	2826832485330.1000
2005-10-01	2937770513466.4400
2006-01-01	3018497116169.3696
2006-04-01	3297842459501.3200
2006-07-01	3305371860759.9600
2006-10-01	3508995287135.6100
2007-01-01	3546250823858.9600
2007-04-01	3853160898563.5500
2007-07-01	3916152435726.0300
2007-10-01	4210389311170.8900
2008-01-01	4228707126592.5996
2008-04-01	4540818398391.0600
2008-07-01	4313733363347.8096
2008-10-01	3631092588747.4400
2009-01-01	3057377208375.3300
2009-04-01	3202025796857.4300
2009-07-01	3359343542382.4497
2009-10-01	3635823079856.7600
2010-01-01	3530134158184.4700
2010-04-01	3666052549672.5200
2010-07-01	3733879624681.6800
2010-10-01	4048841716924.3200
2011-01-01	4092838483972.4400
2011-04-01	4467582541320.1800
2011-07-01	4401299822454.1090
2011-10-01	4319472902477.7000
2012-01-01	4226388721219.0703
2012-04-01	4311648890674.7000
2012-07-01	4179917615619.1200
2012-10-01	4331971646482.1900
2013-01-01	4225788574520.7397
2013-04-01	4432431152002.4100
2013-07-01	4372220442117.5996
2013-10-01	4531624604032.3010
2014-01-01	4443462968714.9600
2014-04-01	4661174730582.8200
2014-07-01	4521288590281.3300
2014-10-01	4453353543833.5690
2015-01-01	4029605109249.0200
2015-04-01	4177967447265.4897
2015-07-01	4069873756154.8200
2015-10-01	4090051949214.2603
2016-01-01	3867411321982.5200
2016-04-01	4188568931258.3200
2016-07-01	4086851120836.8800
2016-10-01	4206352975245.8203
2017-01-01	4123086344093.5200
2017-04-01	4364601443949.1100
2017-07-01	4520337011247.4300
2017-10-01	4699974690097.9400
2018-01-01	4717146084077.9490
2018-04-01	4896393099369.7700