Quarter	US Dollars, sum over component sub-periods
2002-01-01	20707738184.4208000
2002-04-01	38916248544.6021040
2002-07-01	-27798047104.9608000
2002-10-01	17000935524.9079990
2003-01-01	1968842254.3544500
2003-04-01	15046019376.7410000
2003-07-01	-1475736356.0406800
2003-10-01	29475069014.7874000
2004-01-01	41036168242.9462050
2004-04-01	37590424201.9302000
2004-07-01	-1917157954.5519500
2004-10-01	51291454129.3925000
2005-01-01	38084555614.8691940
2005-04-01	78713567617.0583000
2005-07-01	32863110112.3610000
2005-10-01	50144581292.6911000
2006-01-01	60988113643.3766000
2006-04-01	46718417136.6470950
2006-07-01	81835981025.2379000
2006-10-01	82930508154.1077000
2007-01-01	59541679467.5658000
2007-04-01	59519022632.2960000
2007-07-01	53739759485.5421000
2007-10-01	83966425612.7168100
2008-01-01	64322540281.6783000
2008-04-01	24885147464.6438000
2008-07-01	33470552615.6958000
2008-10-01	-61805942719.8779000
2009-01-01	-41842063243.3040000
2009-04-01	-26689004754.0981000
2009-07-01	-9064595222.1208700
2009-10-01	7705328397.7425995
2010-01-01	73150148755.1026000
2010-04-01	71379541947.7808000
2010-07-01	48948815351.4784000
2010-10-01	24971980900.9460000
2011-01-01	90763264245.6711000
2011-04-01	103330022742.1420000
2011-07-01	145226163725.4810000
2011-10-01	734293571.6139640
2012-01-01	110743403442.4059900
2012-04-01	165718489425.2330000
2012-07-01	5400817530.8070200
2012-10-01	116987908295.8750000
2013-01-01	9997811314.3528610
2013-04-01	162895997595.4040200
2013-07-01	107828254877.1810000
2013-10-01	-5421315846.6775500
2014-01-01	51921105096.8321000
2014-04-01	63039461058.1104000
2014-07-01	45513255895.8611000
2014-10-01	19864660137.3138000
2015-01-01	17535489391.9945000
2015-04-01	-31537845182.9549980
2015-07-01	85702977942.1296000
2015-10-01	4610174289.8002810
2016-01-01	46165085673.6123050
2016-04-01	45570698049.6989000
2016-07-01	37246696118.7672000
2016-10-01	49526632948.8693000
2017-01-01	122388822846.8110000
2017-04-01	8207635378.5415590
2017-07-01	973652706.6962620
2017-10-01	29382595683.8578000
2018-01-01	61607321602.9781950
2018-04-01	35994713702.7579040