Quarter	US Dollars, sum over component sub-periods
1993-01-01	160022045.44067800
1993-04-01	218000927.78822400
1993-07-01	239539896.24119700
1993-10-01	325555666.05442100
1994-01-01	335397749.09079000
1994-04-01	377617056.77815600
1994-07-01	378003352.49144304
1994-10-01	486887011.90568995
1995-01-01	507432303.66025700
1995-04-01	586765009.13587090
1995-07-01	556065548.66266500
1995-10-01	704165685.85410400
1996-01-01	616682577.80973400
1996-04-01	659749393.92912500
1996-07-01	713821429.31577410
1996-10-01	832817315.94580300
1997-01-01	702646609.45132500
1997-04-01	828060593.93913500
1997-07-01	839320210.55306200
1997-10-01	1039430617.60469010
1998-01-01	873313608.34037900
1998-04-01	991656724.70775200
1998-07-01	951620354.47423290
1998-10-01	977809553.98031900
1999-01-01	766320518.56870200
1999-04-01	800321728.77096200
1999-07-01	812669231.84517400
1999-10-01	952236156.70787200
2000-01-01	599227706.32293100
2000-04-01	705468874.61746410
2000-07-01	725313902.19973400
2000-10-01	753283352.19151590
2001-01-01	680977562.51794400
2001-04-01	798246611.83122400
2001-07-01	789025326.55809400
2001-10-01	819670547.31759300
2002-01-01	776324552.99256400
2002-04-01	942931940.06688100
2002-07-01	960666149.86105410
2002-10-01	1015965783.91832000
2003-01-01	1091273793.38722000
2003-04-01	1301870242.60314000
2003-07-01	1246948798.46783020
2003-10-01	1446265763.27645000
2004-01-01	1210813833.38294000
2004-04-01	1737547145.80738000
2004-07-01	1669797188.84377000
2004-10-01	1948783660.37840000
2005-01-01	1606132978.84049000
2005-04-01	1898340571.05582000
2005-07-01	1985153582.10487000
2005-10-01	2163076189.22167000
2006-01-01	2043679608.82311990
2006-04-01	2544566236.29025000
2006-07-01	2547117965.91044000
2006-10-01	2845813662.26453000
2007-01-01	2855505264.77794000
2007-04-01	3404374404.48409000
2007-07-01	3188138188.42032000
2007-10-01	3431258796.32250000
2008-01-01	3338717695.18221000
2008-04-01	3758034404.23614000
2008-07-01	3650429412.24995000
2008-10-01	2878803703.46017000
2009-01-01	1922673216.47848000
2009-04-01	2016749923.01408000
2009-07-01	2118418183.73410990
2009-10-01	2338782965.13061000
2010-01-01	2185606788.79201000
2010-04-01	2462864833.32057000
2010-07-01	2634993904.48021000
2010-10-01	3170496574.86578000
2011-01-01	3343960106.83230000
2011-04-01	3905820742.07919030
2011-07-01	4034970035.95685000
2011-10-01	3662171297.25489000
2012-01-01	3504483303.16584000
2012-04-01	3907842797.14041000
2012-07-01	4012822441.56439970
2012-10-01	4027084515.07161000
2013-01-01	3758712592.06355000
2013-04-01	4074620156.64407000
2013-07-01	3937657280.64218000
2013-10-01	4017871515.89442000
2014-01-01	3916182072.43494000
2014-04-01	4176165462.72677000
2014-07-01	4045092937.13869000
2014-10-01	3823094877.64331000
2015-01-01	3132792798.93314030
2015-04-01	3248683414.16060000
2015-07-01	3218030538.17624000
2015-10-01	3235110199.46963020
2016-01-01	3136342643.33560000
2016-04-01	3541225817.32223000
2016-07-01	3295616774.53390000
2016-10-01	3361613207.59469000
2017-01-01	3260178500.44057040
2017-04-01	3599569957.65329030
2017-07-01	3695064873.98927970
2017-10-01	3956459002.83581970
2018-01-01	3997170226.75697000
2018-04-01	4220686024.14573000