Quarter	US Dollars, sum over component sub-periods
1993-01-01	36836165.916090300
1993-04-01	54591015.231809600
1993-07-01	51146894.187687404
1993-10-01	64901772.653935894
1994-01-01	17019506.888910200
1994-04-01	25645021.301444800
1994-07-01	15656202.472309600
1994-10-01	57622755.626523400
1995-01-01	62619867.725842800
1995-04-01	33057183.613288500
1995-07-01	15025106.940037600
1995-10-01	57009122.050225005
1996-01-01	57139703.213904100
1996-04-01	59790190.640624300
1996-07-01	59822546.134789500
1996-10-01	104676609.300362000
1997-01-01	100176760.464981000
1997-04-01	146611941.894353000
1997-07-01	212914992.798280980
1997-10-01	265678064.836266000
1998-01-01	86449660.318353190
1998-04-01	61412686.834282800
1998-07-01	-40603060.123288600
1998-10-01	-16118386.342835201
1999-01-01	85720943.507978200
1999-04-01	55201895.139857600
1999-07-01	-18872463.131483800
1999-10-01	162964499.331877000
2000-01-01	-81694908.197999300
2000-04-01	82237728.131324400
2000-07-01	92485440.804507600
2000-10-01	50931584.675692596
2001-01-01	-23641206.401490900
2001-04-01	156400796.607562000
2001-07-01	-13257191.436305400
2001-10-01	64140340.096109000
2002-01-01	213653634.742279000
2002-04-01	32951675.896428496
2002-07-01	-119960358.529221000
2002-10-01	272398073.021819000
2003-01-01	-644009.320381955
2003-04-01	42710340.390784600
2003-07-01	-94699277.379806200
2003-10-01	-129457785.320406000
2004-01-01	335725653.801632000
2004-04-01	354498176.349882000
2004-07-01	263800097.374044980
2004-10-01	281783058.341644000
2005-01-01	852225799.497393000
2005-04-01	284240812.922408000
2005-07-01	700958181.206574000
2005-10-01	677730568.909329000
2006-01-01	1501456804.010300000
2006-04-01	668286425.208954000
2006-07-01	714018957.417449000
2006-10-01	1143227591.794570000
2007-01-01	1152134070.260749800
2007-04-01	1841408055.758750000
2007-07-01	1386212763.765500000
2007-10-01	977855148.060998000
2008-01-01	589661350.095898000
2008-04-01	359738655.961061000
2008-07-01	299496224.820046000
2008-10-01	292585930.230223000
2009-01-01	-899461962.044979000
2009-04-01	-291840701.602470000
2009-07-01	-507762603.472144960
2009-10-01	886063955.934663000
2010-01-01	-492505755.320442000
2010-04-01	-110647684.223542000
2010-07-01	-304385445.641043000
2010-10-01	-1076228597.197150000
2011-01-01	-786564825.194465000
2011-04-01	676469671.952397000
2011-07-01	-1505153815.421490000
2011-10-01	-1002007576.530839900
2012-01-01	325229899.032716000
2012-04-01	64502360.273073090
2012-07-01	383913535.322427000
2012-10-01	242559489.483366000
2013-01-01	-691547170.364568000
2013-04-01	-173438109.170913000
2013-07-01	-193524986.948506000
2013-10-01	505925960.384144000
2014-01-01	1168892979.730450000
2014-04-01	445247389.836605970
2014-07-01	-492192709.705546000
2014-10-01	213642802.784235000
2015-01-01	-164469089.052474000
2015-04-01	446511471.570419000
2015-07-01	-952280014.855344000
2015-10-01	771025113.836524000
2016-01-01	-409552983.892719000
2016-04-01	421988548.448124000
2016-07-01	-294701831.839373050
2016-10-01	168845691.912972000
2017-01-01	-187964272.283212000
2017-04-01	-199499538.746809000
2017-07-01	48623910.804855600
2017-10-01	432384448.167058000
2018-01-01	-304515873.640476000
2018-04-01	-79215291.433080600