Quarter	US Dollars, sum over component sub-periods
1995-01-01	165963888.201830000
1995-04-01	-406336017.805371000
1995-07-01	71658597.710314990
1995-10-01	-259445662.574842000
1996-01-01	116480291.638186010
1996-04-01	-129280163.301013010
1996-07-01	109263803.069563000
1996-10-01	-32795870.348139305
1997-01-01	-23826336.721166603
1997-04-01	-47629928.832467794
1997-07-01	103746497.504660000
1997-10-01	124445714.745782990
1998-01-01	-72608308.893507100
1998-04-01	-76981320.642474700
1998-07-01	149865063.138906000
1998-10-01	-77101652.857803790
1999-01-01	-52611879.190648600
1999-04-01	-604965130.348696000
1999-07-01	24320270.631176002
1999-10-01	-187149596.327371000
2000-01-01	-227802947.535193980
2000-04-01	-133958884.442679990
2000-07-01	-171682388.059701000
2000-10-01	-59540353.637831800
2001-01-01	110965249.628550000
2001-04-01	-61888331.427802790
2001-07-01	119884978.308026000
2001-10-01	-21410331.384015597
2002-01-01	7530816.671249560
2002-04-01	-5851141.465796719
2002-07-01	95373603.080073200
2002-10-01	-270404124.310195000
2003-01-01	-22225932.109070700
2003-04-01	86373581.413472300
2003-07-01	19505937.180796700
2003-10-01	-340177257.244492000
2004-01-01	58065984.232612796
2004-04-01	-285756593.795264000
2004-07-01	-300277297.655229030
2004-10-01	-457441682.394176000
2005-01-01	-47211952.060417000
2005-04-01	-108375466.704061000
2005-07-01	-268463183.623587000
2005-10-01	-875093227.486976000
2006-01-01	-26453427.888073100
2006-04-01	-128026677.374863000
2006-07-01	-704861018.030955900
2006-10-01	-679381784.926570000
2007-01-01	1537938255.905900000
2007-04-01	-750879835.251498000
2007-07-01	-798802677.644740000
2007-10-01	-1612816148.191450000
2008-01-01	-783562494.289189000
2008-04-01	-1579240731.074940000
2008-07-01	-1172616466.353400000
2008-10-01	-1379039925.537550000
2009-01-01	-193857817.887198000
2009-04-01	-363606708.304123000
2009-07-01	-399088222.656103000
2009-10-01	-854999069.048097000
2010-01-01	-175738586.381742000
2010-04-01	-709043052.067891000
2010-07-01	-524691599.765027940
2010-10-01	-499493910.835315000
2011-01-01	-369150882.674267000
2011-04-01	-102190099.380043000
2011-07-01	-196263020.960214000
2011-10-01	-369167777.288488030
2012-01-01	-310410956.052596030
2012-04-01	-111180012.637683000
2012-07-01	273669785.446593000
2012-10-01	-48667634.326518000
2013-01-01	430946967.832604000
2013-04-01	253104710.522010000
2013-07-01	406919069.066262000
2013-10-01	239692121.667063980
2014-01-01	742806888.279874000
2014-04-01	810001950.035365000
2014-07-01	970610381.249258000
2014-10-01	481351843.794988000
2015-01-01	667332484.533244000
2015-04-01	592730982.448818100
2015-07-01	486145284.258980000
2015-10-01	158013094.575637000
2016-01-01	377150245.124026950
2016-04-01	258816631.801739000
2016-07-01	479936606.869043000
2016-10-01	163781398.664784000
2017-01-01	482910477.317186950
2017-04-01	648868400.554672000
2017-07-01	713620488.044209000
2017-10-01	121755315.742031010
2018-01-01	635329728.297523000
2018-04-01	895787957.258295000