Quarter	US Dollars, sum over component sub-periods
1999-01-01	-578136724.1975759
1999-04-01	-1210209247.6892102
1999-07-01	1058829450.1487601
1999-10-01	100406457.0275920
2000-01-01	2218610710.9911600
2000-04-01	-643403855.6508460
2000-07-01	-1563037167.2543100
2000-10-01	2245278280.9115400
2001-01-01	915487573.3404751
2001-04-01	-3228641956.9814897
2001-07-01	-6138040284.3343900
2001-10-01	-1008194577.9837500
2002-01-01	2016713518.1168300
2002-04-01	-1558087064.6515000
2002-07-01	1849829077.6234000
2002-10-01	1924840451.1303198
2003-01-01	-401521299.3348830
2003-04-01	1069775552.8762200
2003-07-01	-5351643955.5252600
2003-10-01	3622467258.4846196
2004-01-01	7512400075.9339490
2004-04-01	5936510084.4187100
2004-07-01	3525466710.8610000
2004-10-01	14089823710.9464020
2005-01-01	14986344609.3986000
2005-04-01	10907188260.7144000
2005-07-01	7447848721.9577600
2005-10-01	21720774116.7758000
2006-01-01	20640548147.2713970
2006-04-01	18765929445.7234000
2006-07-01	18486065690.5984000
2006-10-01	31132703903.4392000
2007-01-01	33367658190.9997980
2007-04-01	31446676612.8990000
2007-07-01	30450338624.3460000
2007-10-01	47763069054.7346950
2008-01-01	31257562863.3196000
2008-04-01	32427594134.8164020
2008-07-01	28989288876.9461000
2008-10-01	41371683015.6635000
2009-01-01	31724134237.9836000
2009-04-01	31218536174.6885000
2009-07-01	34990157105.6325000
2009-10-01	45950539369.7072000
2010-01-01	37592890964.5394000
2010-04-01	37392655465.9651000
2010-07-01	41136589757.4259000
2010-10-01	51232520114.0994950
2011-01-01	53148794865.9109040
2011-04-01	57554012633.2642060
2011-07-01	60664408672.6362000
2011-10-01	65296653939.7875000
2012-01-01	63444975632.2730000
2012-04-01	56673639595.0952000
2012-07-01	56751673498.0062000
2012-10-01	74872440619.9970000
2013-01-01	68983971339.4612000
2013-04-01	72407567420.1324000
2013-07-01	71791371820.0746000
2013-10-01	80721095327.9822000
2014-01-01	76763253934.7296000
2014-04-01	90767500886.4274000
2014-07-01	84246346453.8988000
2014-10-01	95991779033.1776100
2015-01-01	91303341845.1688100
2015-04-01	91433628620.2896000
2015-07-01	90602100215.6214900
2015-10-01	93083923389.8004000
2016-01-01	90814793644.9541000
2016-04-01	85681649226.7404000
2016-07-01	85247201746.6598000
2016-10-01	90793831296.3528000
2017-01-01	93728451501.0582000
2017-04-01	87615445539.2404000
2017-07-01	92951947615.5930000
2017-10-01	106586508713.4230000
2018-01-01	104119431737.5660100