Quarter	US Dollars, sum over component sub-periods
1991-01-01	-33221127.588684900
1991-04-01	-24818268.861032100
1991-07-01	-45984342.922679900
1991-10-01	-88957827.449855600
1992-01-01	-41064337.909882490
1992-04-01	-36346961.531313900
1992-07-01	-34722826.903380010
1992-10-01	-190580780.399664000
1993-01-01	-41871335.073196600
1993-04-01	-146255132.562882000
1993-07-01	15156351.461442200
1993-10-01	-95309954.240209190
1994-01-01	-53314006.495766200
1994-04-01	-10592624.315487500
1994-07-01	-5008100.034141340
1994-10-01	21539977.973568298
1995-01-01	-105737210.821526000
1995-04-01	-56032946.569259400
1995-07-01	-55987500.000000000
1995-10-01	-41209106.871122600
1996-01-01	-358269165.815458000
1996-04-01	5140495.433339900
1996-07-01	-322518699.928788000
1996-10-01	-33225468.801045403
1997-01-01	-38923946.125238700
1997-04-01	-30825643.570136000
1997-07-01	-84368288.906094500
1997-10-01	-133569602.003262980
1998-01-01	-134847746.866065980
1998-04-01	-111112661.401227000
1998-07-01	-106050336.339401990
1998-10-01	-146045872.076698000
1999-01-01	-96535385.925917700
1999-04-01	-52837510.402484000
1999-07-01	-121645469.527634010
1999-10-01	-56045763.529081000
2000-01-01	-113535403.518980010
2000-04-01	-141950006.905538000
2000-07-01	7402071113.312850000
2000-10-01	-419962508.699373960
2001-01-01	-120867094.715372010
2001-04-01	-175635427.375056000
2001-07-01	-172938518.722270000
2001-10-01	-137036941.442841000
2002-01-01	-98182485.676705200
2002-04-01	-412906933.137822030
2002-07-01	-456431361.927237000
2002-10-01	-248115812.992243020
2003-01-01	-125602259.410834000
2003-04-01	-20446047.771503700
2003-07-01	-90052561.772124100
2003-10-01	-51165797.409707200
2004-01-01	-40004794.631356500
2004-04-01	-195249886.841922010
2004-07-01	64801895.147483096
2004-10-01	-103632184.123030990
2005-01-01	76006614.330136100
2005-04-01	-28945751.941679400
2005-07-01	62194545.633457504
2005-10-01	-8325515.738451120
2006-01-01	8420283.534913240
2006-04-01	-80440642.904100600
2006-07-01	-223045363.185532000
2006-10-01	-152208672.341578000
2007-01-01	-534935045.532487900
2007-04-01	-179294466.945151000
2007-07-01	-138862427.611220000
2007-10-01	-688308778.428518000
2008-01-01	-298143281.765868000
2008-04-01	-234308713.809339000
2008-07-01	-490339622.119642000
2008-10-01	330969582.129013000
2009-01-01	-1298457062.090090000
2009-04-01	-221977129.039596020
2009-07-01	327567035.800170000
2009-10-01	1423521766.083530200
2010-01-01	345942099.176658030
2010-04-01	1082624875.200440200
2010-07-01	280438613.667515040
2010-10-01	1335603283.320520000
2011-01-01	631658177.020412100
2011-04-01	352627807.719867000
2011-07-01	210382662.755912000
2011-10-01	393419675.066564000
2012-01-01	-473419328.833913000
2012-04-01	247494145.779386000
2012-07-01	1685565619.554460000
2012-10-01	734556827.434911000
2013-01-01	220355614.292850000
2013-04-01	871108575.429210000
2013-07-01	929873653.920950000
2013-10-01	-586640002.490089000
2014-01-01	1319784194.489890000
2014-04-01	1151856505.890820000
2014-07-01	1013260018.634940000
2014-10-01	340879515.839252000
2015-01-01	72046691.987394690
2015-04-01	1279697232.120320000
2015-07-01	976070339.765342000
2015-10-01	293265300.181931000
2016-01-01	-575313933.240041000
2016-04-01	2502345794.383310000
2016-07-01	988662714.917396000
2016-10-01	852309778.577922000
2017-01-01	782118910.747606000
2017-04-01	421214571.885490000
2017-07-01	1798145107.300330000
2017-10-01	439214050.017191050
2018-01-01	-529646253.184202000
2018-04-01	117929531.607143000