Quarter	US Dollars, sum over component sub-periods
1998-01-01	1257000000.000000000
1998-04-01	-62000000.000000000
1998-07-01	1059000000.000000000
1998-10-01	4172000000.000000000
1999-01-01	1309050000.000000000
1999-04-01	71440000.000000000
1999-07-01	4237810000.000000500
1999-10-01	2887020000.000000000
2000-01-01	2040700000.000000000
2000-04-01	1326890000.000000000
2000-07-01	1523910000.000000000
2000-10-01	5656900000.000000000
2001-01-01	10613000000.000000000
2001-04-01	4959000000.000000000
2001-07-01	15028463530.000000000
2001-10-01	16724666190.000000000
2002-01-01	15268190280.000000000
2002-04-01	15879280000.000000000
2002-07-01	16206150000.000000000
2002-10-01	28153440000.000000000
2003-01-01	35902450000.000000000
2003-04-01	16239914000.000000000
2003-07-01	34424300000.000000000
2003-10-01	19581642000.000000000
2004-01-01	37511114000.000000000
2004-04-01	32003886000.000000000
2004-07-01	40598000000.000000000
2004-10-01	79947000000.000000000
2005-01-01	58999351000.000000000
2005-04-01	76290093000.000000000
2005-07-01	57464384000.000000000
2005-10-01	57895069000.000000000
2006-01-01	68360739000.000000000
2006-04-01	74646167000.000000000
2006-07-01	70372220000.000000000
2006-10-01	71397340000.000000000
2007-01-01	143910244800.000000000
2007-04-01	128163616600.000000000
2007-07-01	98698911180.000000000
2007-10-01	89931429790.000000000
2008-01-01	180823113500.000000000
2008-04-01	112732979200.000000000
2008-07-01	102202507400.000000000
2008-10-01	83780488530.000000000
2009-01-01	65657194070.000000000
2009-04-01	103950655800.000000000
2009-07-01	104751882900.000000000
2009-10-01	125984131100.000000000
2010-01-01	95977603180.000000000
2010-04-01	82055676900.000000000
2010-07-01	108000001200.000000000
2010-10-01	185705745900.000000000
2011-01-01	141190792200.000000000
2011-04-01	142527993500.000000000
2011-07-01	91660747010.000000000
2011-10-01	12421918960.000000000
2012-01-01	74645345350.000000000
2012-04-01	-11755660850.000000000
2012-07-01	-440712700.300000000
2012-10-01	34102597710.000000000
2013-01-01	156969744400.000000000
2013-04-01	46584276360.000000000
2013-07-01	97048875380.000000000
2013-10-01	130776530800.000000000
2014-01-01	125476631700.000000000
2014-04-01	22415400790.000000000
2014-07-01	-66303944.900000006
2014-10-01	-30045606700.000000000
2015-01-01	-80238507330.000000000
2015-04-01	13100674180.000000000
2015-07-01	-160539647600.000000000
2015-10-01	-115261755400.000000000
2016-01-01	-123273243000.000000000
2016-04-01	-34525006820.000000000
2016-07-01	-136326389499.999980000
2016-10-01	-149539956100.000000000
2017-01-01	-2588566072.000000000
2017-04-01	31561743370.000000000
2017-07-01	29923784920.000000000
2017-10-01	32618781040.000000000
2018-01-01	26194772410.000000000
2018-04-01	23915009640.000000000