Quarter	US Dollars, sum over component sub-periods
1995-01-01	973005004.1930130000
1995-04-01	6964500.9052708605
1995-07-01	204421120.5785389800
1995-10-01	485874697.4068280000
1996-01-01	189475461.4022620000
1996-04-01	-24899198.6687988000
1996-07-01	204929457.8412180200
1996-10-01	-298975231.4304939500
1997-01-01	2338262307.1741900000
1997-04-01	127133228.8707210000
1997-07-01	632647311.3324790000
1997-10-01	290639774.1195460000
1998-01-01	1694556335.8673400000
1998-04-01	27369116.9692455000
1998-07-01	214758909.4894040000
1998-10-01	549252178.0709640000
1999-01-01	512984550.7923770500
1999-04-01	1196241235.5122402000
1999-07-01	131083480.0944330100
1999-10-01	1106384887.4444500000
2000-01-01	356402440.6117559700
2000-04-01	224131589.8508490000
2000-07-01	640711563.8308890000
2000-10-01	1652026431.7366700000
2001-01-01	419805557.9808730000
2001-04-01	100487931.0852309900
2001-07-01	-53486139.8110113000
2001-10-01	467537800.2167520000
2002-01-01	433931521.5175810500
2002-04-01	-498431086.3267250000
2002-07-01	-37380154.6405927000
2002-10-01	42019613.4906218000
2003-01-01	252278042.4063770200
2003-04-01	-371436534.5156510000
2003-07-01	9005256.1772124100
2003-10-01	2874803873.0663400000
2004-01-01	105012585.9073110000
2004-04-01	188018409.5514800000
2004-07-01	210300489.9125870200
2004-10-01	1729362072.5530800000
2005-01-01	-272575444.4942810000
2005-04-01	202620263.5917560000
2005-07-01	1196330377.7729800000
2005-10-01	176025189.8986809800
2006-01-01	-651970525.1318539000
2006-04-01	160881285.8082010000
2006-07-01	1467001217.2945602000
2006-10-01	1043532338.3418299000
2007-01-01	85222494.9990483000
2007-04-01	467783308.4959960000
2007-07-01	917041972.4424120000
2007-10-01	1075210765.4609700000
2008-01-01	-444967611.4797120000
2008-04-01	-304601327.9521400300
2008-07-01	-52482834.1718272000
2008-10-01	458366603.8215300400
2009-01-01	-456671772.3382990000
2009-04-01	-85794841.2852424000
2009-07-01	-151624916.1345770000
2009-10-01	1089791559.5120802000
2010-01-01	-478783865.2604940000
2010-04-01	-203309835.7183920000
2010-07-01	-62032504.4057176040
2010-10-01	813034925.5172659000
2011-01-01	-206451049.1993120000
2011-04-01	-1090987258.1700400000
2011-07-01	-450416573.2827920000
2011-10-01	3044960498.8028600000
2012-01-01	-474730739.7171100000
2012-04-01	-106435306.2160050000
2012-07-01	18770218.4805620000
2012-10-01	5696059921.5756600000
2013-01-01	-3143036366.7399400000
2013-04-01	-344786602.5686830000
2013-07-01	31790552.2708017000
2013-10-01	2556171518.9707403000
2014-01-01	-797626584.8318939000
2014-04-01	-191976084.3151360200
2014-07-01	515239408.1686160000
2014-10-01	3765907032.1288800000
2015-01-01	-272426554.0773360000
2015-04-01	-484448908.9617130000
2015-07-01	82265609.5018626000
2015-10-01	4932984974.7020300000
2016-01-01	-361499942.7255430000
2016-04-01	-868368193.0869880000
2016-07-01	-961881783.5878060000
2016-10-01	-1254220710.8276901000
2017-01-01	-367617199.1933570000
2017-04-01	-769843865.0648650000
2017-07-01	-428689068.6901520000
2017-10-01	432148944.6549840000
2018-01-01	-739784325.7932470000
2018-04-01	-980363681.9462459000