Quarter	US Dollars, sum over component sub-periods
1996-01-01	4014205589.470630
1996-04-01	53977650475.237000
1996-07-01	16810850725.395401
1996-10-01	89297585775.268700
1997-01-01	39218363593.033000
1997-04-01	89740408809.989090
1997-07-01	47101116486.275300
1997-10-01	99426542438.067700
1998-01-01	-65039924434.517200
1998-04-01	-1229913104.450710
1998-07-01	32192282152.743900
1998-10-01	103225156418.773000
1999-01-01	-85504111303.939500
1999-04-01	-64084888153.346000
1999-07-01	45020876711.858900
1999-10-01	96485542243.547410
2000-01-01	12989822845.842600
2000-04-01	53351204430.818200
2000-07-01	25251266289.492500
2000-10-01	94566453527.561400
2001-01-01	28808214260.670700
2001-04-01	25698838398.362297
2001-07-01	-6518412705.321150
2001-10-01	86988653896.851700
2002-01-01	-58872121598.510700
2002-04-01	69899381522.483810
2002-07-01	54933092798.088000
2002-10-01	58396993001.122604
2003-01-01	40123082531.427704
2003-04-01	69899046886.699200
2003-07-01	40956975780.577800
2003-10-01	91472976074.618590
2004-01-01	105979634883.638000
2004-04-01	142214755680.330020
2004-07-01	75471429199.630100
2004-10-01	97353725879.958100
2005-01-01	7090731884.444460
2005-04-01	134779764868.034000
2005-07-01	107979566806.735000
2005-10-01	133848492190.943010
2006-01-01	43939678745.831400
2006-04-01	64728241522.634500
2006-07-01	37339361730.151100
2006-10-01	98826178460.090500
2007-01-01	142209108062.055000
2007-04-01	89898293050.964800
2007-07-01	151781092088.918000
2007-10-01	107089231171.208000
2008-01-01	172821318135.900000
2008-04-01	1636526621.412510
2008-07-01	66610325980.273400
2008-10-01	-72757382023.300490
2009-01-01	-24757520593.303300
2009-04-01	55669704067.579500
2009-07-01	30830947070.471800
2009-10-01	-19952761373.211900
2010-01-01	89596367220.260700
2010-04-01	150957641218.607000
2010-07-01	250418226327.979000
2010-10-01	7337908670.872680
2011-01-01	200307802951.024000
2011-04-01	8987697234.013220
2011-07-01	197031142997.648000
2011-10-01	58839867791.970604
2012-01-01	100812760266.868990
2012-04-01	79507195459.875500
2012-07-01	98866976104.751300
2012-10-01	70042059666.674290
2013-01-01	25142121368.252000
2013-04-01	43899658720.490400
2013-07-01	131280419150.078000
2013-10-01	147752533724.080020
2014-01-01	13300260364.714602
2014-04-01	140993267817.188000
2014-07-01	146344630256.439000
2014-10-01	104760899425.762010
2015-01-01	164045488402.534030
2015-04-01	23676920399.104700
2015-07-01	137971073024.685000
2015-10-01	99356301177.823900
2016-01-01	164224834054.280030
2016-04-01	163685592114.566000
2016-07-01	165608994606.125000
2016-10-01	96412075913.452100
2017-01-01	30954276139.868603
2017-04-01	93739829628.202800
2017-07-01	185031602274.938000
2017-10-01	18445495984.109600
2018-01-01	183069029255.486000
2018-04-01	127557421193.888000
2018-07-01	172230346538.388000