Quarter	US Dollars, sum over component sub-periods
1996-01-01	8406538762.478400
1996-04-01	8559004472.539761
1996-07-01	8062677815.912419
1996-10-01	9594531944.892900
1997-01-01	8491367219.147091
1997-04-01	8824908493.029930
1997-07-01	7912200097.516820
1997-10-01	9631629753.494240
1998-01-01	8858694419.063630
1998-04-01	9765772715.034020
1998-07-01	9037791819.395779
1998-10-01	11038987491.890100
1999-01-01	9732113906.717522
1999-04-01	9839401187.150560
1999-07-01	9451643248.728981
1999-10-01	11178016170.522300
2000-01-01	10470925997.585300
2000-04-01	9901946863.285640
2000-07-01	9228415359.437280
2000-10-01	10447762949.340900
2001-01-01	10005212023.614500
2001-04-01	10052288340.908700
2001-07-01	9318176990.741690
2001-10-01	10294788267.607900
2002-01-01	9149380383.997970
2002-04-01	10178293844.029900
2002-07-01	10185108451.281500
2002-10-01	11466352148.000400
2003-01-01	11107748530.973500
2003-04-01	11871202514.443600
2003-07-01	11541361448.119900
2003-10-01	13686255855.964000
2004-01-01	13651636167.950401
2004-04-01	14326761758.579800
2004-07-01	13756341930.270401
2004-10-01	16699031069.124899
2005-01-01	15182976441.878600
2005-04-01	15677270953.804400
2005-07-01	14636449739.073700
2005-10-01	15524708133.428900
2006-01-01	15985306842.208900
2006-04-01	17368894442.058800
2006-07-01	16941251242.640501
2006-10-01	18169587784.775100
2007-01-01	17972768637.645400
2007-04-01	19653639350.326000
2007-07-01	19425616234.840800
2007-10-01	22580875145.792800
2008-01-01	23437957286.156900
2008-04-01	25602132128.900402
2008-07-01	23717742517.022602
2008-10-01	19248770617.788902
2009-01-01	15317369731.449600
2009-04-01	16234290523.196400
2009-07-01	17999021884.163900
2009-10-01	19598527883.257900
2010-01-01	17993140462.376300
2010-04-01	18552022509.303200
2010-07-01	17428549050.323100
2010-10-01	20486036946.297300
2011-01-01	19857583036.892800
2011-04-01	21255540671.048900
2011-07-01	19655953343.792297
2011-10-01	18253595060.965100
2012-01-01	18068619148.680500
2012-04-01	17077096058.777600
2012-07-01	16340100861.278502
2012-10-01	17428204303.221600
2013-01-01	17018842593.707700
2013-04-01	17845318702.645800
2013-07-01	18143133102.215500
2013-10-01	19363203423.257600
2014-01-01	18770264099.411697
2014-04-01	19204464720.239200
2014-07-01	18959220793.124800
2014-10-01	18439958571.113800
2015-01-01	15558708280.590300
2015-04-01	17068528682.870201
2015-07-01	16054022524.545900
2015-10-01	16166796809.282999
2016-01-01	15180793326.529400
2016-04-01	16645793932.763700
2016-07-01	16214738047.928501
2016-10-01	16920126994.954601
2017-01-01	17138420382.104198
2017-04-01	18266195364.089100
2017-07-01	18980942572.880900
2017-10-01	20369876276.802600
2018-01-01	21087539917.960300
2018-04-01	21982541174.527400