Quarter	US Dollars, sum over component sub-periods
1991-01-01	-916136480.041811000
1991-04-01	-575332596.323925000
1991-07-01	-558541531.109624000
1991-10-01	-973727570.734905000
1992-01-01	-346631322.945184050
1992-04-01	-471298934.522703000
1992-07-01	-385957575.964493000
1992-10-01	-417763167.631052000
1993-01-01	-183037550.462831020
1993-04-01	-437556677.584822000
1993-07-01	-129411924.016928990
1993-10-01	-729934771.498187100
1994-01-01	-91881585.662916200
1994-04-01	-520215549.716166000
1994-07-01	61349225.418231495
1994-10-01	-1207505824.047680100
1995-01-01	-255091021.106931000
1995-04-01	-2155867619.252259700
1995-07-01	-363235975.609756000
1995-10-01	-344782860.821725000
1996-01-01	-492786584.950630000
1996-04-01	-177347092.450227000
1996-07-01	-1513356976.588930000
1996-10-01	-822969304.148971000
1997-01-01	-386880434.214494000
1997-04-01	-348215603.292277040
1997-07-01	685762758.544409000
1997-10-01	-483076727.245134000
1998-01-01	163021678.029470000
1998-04-01	-189294975.655083000
1998-07-01	462361717.429527000
1998-10-01	-975129811.464559000
1999-01-01	147048087.863897980
1999-04-01	-112015522.053266000
1999-07-01	-1008818462.806749900
1999-10-01	0.000000000
2000-01-01	44426897.029166200
2000-04-01	-450130942.950455000
2000-07-01	6490254515.420940000
2000-10-01	-1438132483.206550000
2001-01-01	388435472.329555030
2001-04-01	-187868740.724563000
2001-07-01	-3614771615.560850000
2001-10-01	528443107.524681000
2002-01-01	42954837.483558500
2002-04-01	-481878024.419195000
2002-07-01	-396426376.846286000
2002-10-01	-3134463073.002820000
2003-01-01	-158881490.536782000
2003-04-01	149937683.657694000
2003-07-01	144084098.835399000
2003-10-01	6912142259.371840000
2004-01-01	310037158.393013000
2004-04-01	18078693.226103798
2004-07-01	298333253.131809000
2004-10-01	-810921840.762715900
2005-01-01	-1917201323.534299900
2005-04-01	66701080.561261300
2005-07-01	-1719496261.630880000
2005-10-01	579218023.517956000
2006-01-01	165999875.402575000
2006-04-01	-110605883.993138000
2006-07-01	-539132506.442743000
2006-10-01	-1231858322.764459800
2007-01-01	-351378902.457614000
2007-04-01	299273471.141531000
2007-07-01	272225353.138827000
2007-10-01	-2532976304.616940000
2008-01-01	455455063.602129000
2008-04-01	145271402.561790020
2008-07-01	-937193467.354057100
2008-10-01	-872078581.482796100
2009-01-01	-1269833760.120169900
2009-04-01	114393121.713656990
2009-07-01	380492714.073560000
2009-10-01	-1819272630.513389800
2010-01-01	708489419.113794900
2010-04-01	531146945.814298000
2010-07-01	293362052.085373040
2010-10-01	84153865.412471600
2011-01-01	1919584589.906190200
2011-04-01	-66207670.020872900
2011-07-01	344519259.815050960
2011-10-01	-1593888615.081320000
2012-01-01	-272773463.704859000
2012-04-01	669388311.382587000
2012-07-01	1678057532.162240000
2012-10-01	-2683857807.659710000
2013-01-01	539673330.813028000
2013-04-01	971671334.511742000
2013-07-01	14570669.790784100
2013-10-01	-2352004464.739850000
2014-01-01	3058939067.602730300
2014-04-01	2742515.490216230
2014-07-01	1120546373.549230000
2014-10-01	-177307293.953017980
2015-01-01	397382535.492974000
2015-04-01	1556209166.459200100
2015-07-01	863788899.769557000
2015-10-01	-2192924110.315630000
2016-01-01	-225937464.203464000
2016-04-01	1139380372.984099900
2016-07-01	342572746.591017000
2016-10-01	2538611679.304150000
2017-01-01	657448730.151598100
2017-04-01	-799537842.717366900
2017-07-01	1061739501.632589900
2017-10-01	-1232860885.705089800
2018-01-01	262979810.165706000
2018-04-01	101252628.147547000