Quarter	US Dollars, sum over component sub-periods
2004-01-01	115381535.35296899
2004-04-01	156516950.18969500
2004-07-01	664613066.58854090
2004-10-01	245202223.64643500
2005-01-01	542063866.75386610
2005-04-01	88119835.61981360
2005-07-01	125640454.92772701
2005-10-01	239055081.61783900
2006-01-01	430302276.07127100
2006-04-01	259734993.09243300
2006-07-01	634909050.16596510
2006-10-01	779414760.91727700
2007-01-01	589326296.77036600
2007-04-01	685068305.59617200
2007-07-01	1160034445.24477000
2007-10-01	2342931753.51817000
2008-01-01	2006294084.41120000
2008-04-01	2755683165.44850000
2008-07-01	653925710.78775000
2008-10-01	697689401.91157290
2009-01-01	2439240491.93620000
2009-04-01	1388850596.66664000
2009-07-01	647538011.18129900
2009-10-01	2557801149.11785000
2010-01-01	1745448338.40224000
2010-04-01	1330713383.22591020
2010-07-01	1674782649.54220000
2010-10-01	3863646944.09125000
2011-01-01	1143043960.49281000
2011-04-01	2035616336.21384000
2011-07-01	2027915217.60174010
2011-10-01	4808387937.41955000
2012-01-01	1755416515.84880000
2012-04-01	2911959923.81697000
2012-07-01	3142408587.91929000
2012-10-01	3165008024.66407000
2013-01-01	1067948293.52977990
2013-04-01	4264515902.93725970
2013-07-01	3019630328.61425000
2013-10-01	3613182441.12522030
2014-01-01	2024195126.78460000
2014-04-01	5005822300.20169100
2014-07-01	2566690306.97369000
2014-10-01	3708283613.53296000
2015-01-01	4083420178.96206000
2015-04-01	1304892131.35497000
2015-07-01	5092190961.67070000
2015-10-01	851012489.18843400
2016-01-01	2641089560.28955000
2016-04-01	-4908644.76016339
2016-07-01	51668890.36652700
2016-10-01	2193513793.83199000
2017-01-01	657304879.74287700
2017-04-01	975958248.44601100
2017-07-01	1220780399.97362000
2017-10-01	3944086282.61263000
2018-01-01	1676895956.81214000
2018-04-01	1852381342.95523000