Quarter	US Dollars, sum over component sub-periods
1995-01-01	13584283456.597600
1995-04-01	13083975700.702200
1995-07-01	15058621723.559100
1995-10-01	12816914087.704300
1996-01-01	14002728741.682701
1996-04-01	13328541047.407999
1996-07-01	15829209551.014800
1996-10-01	14098908573.245700
1997-01-01	12753513564.243700
1997-04-01	13889591590.227400
1997-07-01	16382929333.047298
1997-10-01	13734419093.277200
1998-01-01	14119860930.070099
1998-04-01	14835046685.541900
1998-07-01	17469246361.383500
1998-10-01	16752426656.936602
1999-01-01	15176260671.144300
1999-04-01	14704679145.011300
1999-07-01	16753517423.909300
1999-10-01	14624830627.560799
2000-01-01	14591767513.135000
2000-04-01	14663809265.991800
2000-07-01	15881332895.294800
2000-10-01	13576179318.492800
2001-01-01	14248477432.744200
2001-04-01	15830781282.357700
2001-07-01	17013049638.219200
2001-10-01	14551890115.175400
2002-01-01	14284675036.624199
2002-04-01	16728708286.659500
2002-07-01	18562197843.894302
2002-10-01	17310079824.160500
2003-01-01	18106048779.684902
2003-04-01	19219284905.213497
2003-07-01	21757824581.167300
2003-10-01	19144337547.087900
2004-01-01	21120031265.691800
2004-04-01	20225236735.149902
2004-07-01	23728497719.381203
2004-10-01	22394914988.986900
2005-01-01	23453282356.318000
2005-04-01	23339085641.671500
2005-07-01	25270497541.500100
2005-10-01	22668000637.020000
2006-01-01	24057952956.894997
2006-04-01	25625372305.137497
2006-07-01	29300513452.984000
2006-10-01	27433678333.565000
2007-01-01	28588869283.911500
2007-04-01	30655309611.524300
2007-07-01	35132194185.638596
2007-10-01	33606857240.661396
2008-01-01	32382255739.133000
2008-04-01	36256930374.857090
2008-07-01	36280633508.210205
2008-10-01	27056763339.046800
2009-01-01	24258248419.508800
2009-04-01	25301307241.881298
2009-07-01	31675303234.755302
2009-10-01	28402507934.492400
2010-01-01	25699346663.635597
2010-04-01	26423925211.024700
2010-07-01	30547131388.290600
2010-10-01	30414835744.559097
2011-01-01	26265768915.019800
2011-04-01	30220922770.179802
2011-07-01	33624514972.277195
2011-10-01	28937903359.861900
2012-01-01	25504318856.404300
2012-04-01	26088191200.703697
2012-07-01	29585618369.061700
2012-10-01	27526413975.078600
2013-01-01	24834209680.273900
2013-04-01	27255119731.082703
2013-07-01	30419584704.123400
2013-10-01	28890999287.365700
2014-01-01	26739677485.661700
2014-04-01	29317490590.411500
2014-07-01	31650799222.615000
2014-10-01	27638710927.113000
2015-01-01	23437689487.149300
2015-04-01	24516654146.222202
2015-07-01	27094289659.181000
2015-10-01	26371991546.210900
2016-01-01	23519538956.594800
2016-04-01	25740511003.144200
2016-07-01	28172423886.590900
2016-10-01	26641415013.071000
2017-01-01	23802414479.945500
2017-04-01	27619798324.627200
2017-07-01	32509899784.502502
2017-10-01	32129744152.195900
2018-01-01	27646059763.074200
2018-04-01	30909449354.971100