Quarter	US Dollars, sum over component sub-periods
1999-01-01	-1096686884.297930000
1999-04-01	-2356552963.950780000
1999-07-01	-3341055740.646900000
1999-10-01	-1522576575.873370200
2000-01-01	665416191.059067000
2000-04-01	-1539970798.600210000
2000-07-01	-2129981884.272780000
2000-10-01	-624292093.677329900
2001-01-01	-333076497.650757970
2001-04-01	-1040705442.804440000
2001-07-01	-2536134462.705450000
2001-10-01	-1181383828.517040000
2002-01-01	3392555531.864720000
2002-04-01	-4319429543.314810000
2002-07-01	880401010.613960000
2002-10-01	1836857389.732900000
2003-01-01	3194806188.090970000
2003-04-01	1518686992.805580100
2003-07-01	38272338.753152800
2003-10-01	1003087609.683330000
2004-01-01	5501909411.643750000
2004-04-01	-326621724.284943000
2004-07-01	-1590703124.280670000
2004-10-01	1934035636.196060200
2005-01-01	4829040927.699161000
2005-04-01	-1206912004.872630000
2005-07-01	2091444034.536849700
2005-10-01	1039500107.915180000
2006-01-01	9057819288.270962000
2006-04-01	431111570.564164040
2006-07-01	1783088360.551770000
2006-10-01	3544656199.954710000
2007-01-01	6327442474.852420000
2007-04-01	2206804829.994080000
2007-07-01	1336379006.317880200
2007-10-01	7042485606.658099000
2008-01-01	11014821143.430399000
2008-04-01	3730194723.844670300
2008-07-01	1352557612.085370000
2008-10-01	-1104545311.787700000
2009-01-01	6224267119.277559000
2009-04-01	-430336029.303756000
2009-07-01	6758752157.885611000
2009-10-01	196398749.884969000
2010-01-01	4843189388.473210000
2010-04-01	-1317701872.749830000
2010-07-01	193851576.267868000
2010-10-01	1026134229.868200100
2011-01-01	8424843477.921600000
2011-04-01	-2268332346.802079700
2011-07-01	-6310067918.497800000
2011-10-01	6244863677.854540000
2012-01-01	-1167155686.044829800
2012-04-01	1568317825.327400000
2012-07-01	3739027521.327940000
2012-10-01	2468422413.040990000
2013-01-01	6959015028.625700000
2013-04-01	4313750561.683181000
2013-07-01	1498129775.761530000
2013-10-01	1652392025.575330000
2014-01-01	-90452499.310833410
2014-04-01	183748537.844488000
2014-07-01	2242417269.998630000
2014-10-01	1347285705.459900100
2015-01-01	2606063936.731539700
2015-04-01	-2091536271.339270000
2015-07-01	3828685934.113710000
2015-10-01	160858205.696805000
2016-01-01	4889066298.568630000
2016-04-01	-1558320034.408380000
2016-07-01	6162961822.222099000
2016-10-01	2254149250.044270000
2017-01-01	3310685906.938440000
2017-04-01	-8798215.600741321
2017-07-01	3792430144.658900300
2017-10-01	3140439333.500930000
2018-01-01	9338241016.117750000
2018-04-01	-2751689070.833329700