Quarter	US Dollars, sum over component sub-periods
1995-01-01	15723281518.340700
1995-04-01	16596460094.335201
1995-07-01	15521103674.361400
1995-10-01	16493340046.688300
1996-01-01	16463609704.078900
1996-04-01	15820895522.388100
1996-07-01	15981186307.812900
1996-10-01	16451365514.890697
1997-01-01	15425301820.755800
1997-04-01	15482067470.429400
1997-07-01	14923143537.562200
1997-10-01	16284345759.691100
1998-01-01	15980384422.290800
1998-04-01	15959672727.272700
1998-07-01	16203949558.078500
1998-10-01	17885995529.236400
1999-01-01	16723071854.934002
1999-04-01	16036184407.153900
1999-07-01	16452549753.612398
1999-10-01	17365883617.936700
2000-01-01	16607761373.880800
2000-04-01	16237399803.069601
2000-07-01	15844281873.973200
2000-10-01	16830671389.014002
2001-01-01	17718562495.526800
2001-04-01	16488758778.941902
2001-07-01	15996812981.810001
2001-10-01	16778516497.050602
2002-01-01	16091408098.942900
2002-04-01	16976084600.721998
2002-07-01	17642449302.079700
2002-10-01	18843795716.568200
2003-01-01	20027655996.312202
2003-04-01	20942432375.734100
2003-07-01	20974367293.749900
2003-10-01	23349452152.806600
2004-01-01	24150394459.017000
2004-04-01	24493013582.725500
2004-07-01	25815607814.037003
2004-10-01	29598647187.839100
2005-01-01	27216920224.527500
2005-04-01	28590851852.655400
2005-07-01	27849741933.946400
2005-10-01	29414047103.947800
2006-01-01	28834659516.486500
2006-04-01	31355511227.009300
2006-07-01	31882741486.206200
2006-10-01	34215993580.785500
2007-01-01	35448624573.681000
2007-04-01	36332069012.321594
2007-07-01	37917691990.988400
2007-10-01	41836132088.441505
2008-01-01	42700410420.145700
2008-04-01	46932035376.010500
2008-07-01	43220363695.273600
2008-10-01	37117187938.682700
2009-01-01	30046660713.335300
2009-04-01	31575225238.724300
2009-07-01	33800912908.113598
2009-10-01	36968742130.602900
2010-01-01	34170776788.273600
2010-04-01	35270444437.721200
2010-07-01	36785275112.590600
2010-10-01	40673463402.421400
2011-01-01	41876749575.667100
2011-04-01	45055758746.378400
2011-07-01	44846806271.498604
2011-10-01	43468832111.892296
2012-01-01	42156614251.232600
2012-04-01	40669828152.296490
2012-07-01	39642701430.946800
2012-10-01	41894397431.848700
2013-01-01	39813113473.402200
2013-04-01	40312606293.513405
2013-07-01	41461503192.848495
2013-10-01	44032028029.128500
2014-01-01	43033461793.335900
2014-04-01	42451397273.057100
2014-07-01	41220477176.389404
2014-10-01	39694358273.003100
2015-01-01	34403421153.543300
2015-04-01	34643627229.449300
2015-07-01	35974528695.679300
2015-10-01	35742255596.426895
2016-01-01	34600393908.310100
2016-04-01	36338216454.537410
2016-07-01	35425592788.355095
2016-10-01	35889676491.622604
2017-01-01	36585902997.982400
2017-04-01	37727848272.928800
2017-07-01	39985532448.099200
2017-10-01	42043264492.932400
2018-01-01	44351422096.684500
2018-04-01	43527909236.935300