Quarter	US Dollars, sum over component sub-periods
2004-01-01	1998985099.99018000
2004-04-01	4115701872.47583000
2004-07-01	915707529.40191700
2004-10-01	5005297132.44438000
2005-01-01	1049313307.49173000
2005-04-01	777223048.42527600
2005-07-01	1975650631.83454010
2005-10-01	-1021914852.71748010
2006-01-01	1552038479.33802990
2006-04-01	448806789.53471900
2006-07-01	494140275.47163403
2006-10-01	1508858437.76542000
2007-01-01	1752124090.11178020
2007-04-01	-1994538588.32815980
2007-07-01	1843069110.78444000
2007-10-01	184039331.91678200
2008-01-01	3005668321.19272040
2008-04-01	-1209163704.33352000
2008-07-01	-526042874.14271100
2008-10-01	-6535477336.04724000
2009-01-01	-4538470890.45140000
2009-04-01	903290012.37346300
2009-07-01	671432402.73780390
2009-10-01	-2201960872.97397000
2010-01-01	2596988196.29367000
2010-04-01	1194351645.66758000
2010-07-01	-1656051952.72897000
2010-10-01	1970675596.45018980
2011-01-01	2190978888.13562970
2011-04-01	-608428765.48973000
2011-07-01	2107848138.79201000
2011-10-01	67998637.20239460
2012-01-01	-2495992553.90661000
2012-04-01	2524904381.14813000
2012-07-01	1469890012.25757000
2012-10-01	633127977.78267100
2013-01-01	-1039024693.91334990
2013-04-01	940203331.04810800
2013-07-01	3268485539.00712000
2013-10-01	-1608967349.76189020
2014-01-01	2657779334.21393970
2014-04-01	4720480555.67342000
2014-07-01	-721732874.74442600
2014-10-01	-2202562187.84777000
2015-01-01	3819505566.89540000
2015-04-01	-575298270.37786900
2015-07-01	326146690.70732903
2015-10-01	1584927303.34068010
2016-01-01	180114476.94753200
2016-04-01	2680636738.49765000
2016-07-01	-809222223.25287100
2016-10-01	732321550.90176900
2017-01-01	3064385394.76980970
2017-04-01	-1095314424.09041000
2017-07-01	1514804780.08475020
2017-10-01	2924884303.55019000
2018-01-01	1681600557.07674000
2018-04-01	3908997451.10564000