Quarter	US Dollars, sum over component sub-periods
2000-01-01	-217444334.894842000
2000-04-01	-236034546.362249000
2000-07-01	-207897856.042356000
2000-10-01	52217298.665306404
2001-01-01	-17443574.546292600
2001-04-01	416648231.222165000
2001-07-01	-14199326.767834800
2001-10-01	109396676.335624000
2002-01-01	-167776418.730798000
2002-04-01	161988847.119043000
2002-07-01	139156092.386339000
2002-10-01	-149382319.261760000
2003-01-01	-74682465.815327810
2003-04-01	324082164.365788000
2003-07-01	-190324649.509081000
2003-10-01	-148556667.437490020
2004-01-01	-86937881.058603600
2004-04-01	-53313285.095015800
2004-07-01	-51269753.453171500
2004-10-01	-121188456.030804010
2005-01-01	-125020902.805909990
2005-04-01	-12828215628.977000000
2005-07-01	-4417187105.168840000
2005-10-01	-300758970.702560000
2006-01-01	-845634664.684145900
2006-04-01	137796097.791046020
2006-07-01	192297532.746164000
2006-10-01	874136050.185525100
2007-01-01	-635483180.269580000
2007-04-01	-115443246.736156000
2007-07-01	2828345518.432480000
2007-10-01	1389072203.881160000
2008-01-01	335576354.496656000
2008-04-01	1133132979.403090000
2008-07-01	1707294456.522660000
2008-10-01	676567856.363652000
2009-01-01	6012539464.517241000
2009-04-01	22697122872.495003000
2009-07-01	5612578706.983620000
2009-10-01	13825001285.984001000
2010-01-01	30030862598.375800000
2010-04-01	100170902513.855010000
2010-07-01	-4855966574.669410000
2010-10-01	10391117.896089900
2011-01-01	3435154199.501720000
2011-04-01	2882999573.676090200
2011-07-01	85768759262.255100000
2011-10-01	-37149577886.656296000
2012-01-01	-13894690504.280200000
2012-04-01	129680619584.989990000
2012-07-01	63673092662.402300000
2012-10-01	5032986300.249491000
2013-01-01	2315043678.888080000
2013-04-01	3886611707.230970000
2013-07-01	2520204949.864550000
2013-10-01	5288605206.633080500
2014-01-01	3896131166.950480000
2014-04-01	4775528644.796530000
2014-07-01	993567057.771477000
2014-10-01	26264998719.134400000
2015-01-01	61042841851.681400000
2015-04-01	15667836542.433401000
2015-07-01	12393819938.011301000
2015-10-01	9676665926.539740000
2016-01-01	18318493320.549300000
2016-04-01	24015477467.302002000
2016-07-01	14888563638.783500000
2016-10-01	21025218522.475700000
2017-01-01	35478041374.088500000
2017-04-01	19306941997.221600000
2017-07-01	3917975214.004360000
2017-10-01	2977185460.575680000
2018-01-01	3355152017.941210300
2018-04-01	2670186640.963580000