Quarter	US Dollars, sum over component sub-periods
2003-04-01	0.0000000000
2003-07-01	-9005256.1772124100
2003-10-01	8329315.8573941905
2004-01-01	0.0000000000
2004-04-01	142219053.3786840000
2004-07-01	0.0000000000
2004-10-01	-93268965.7107276900
2005-01-01	-1310458.8677609700
2005-04-01	0.0000000000
2005-07-01	18292513.4216051000
2005-10-01	19029750.2593168000
2006-01-01	-222536064.8512790200
2006-04-01	0.0000000000
2006-07-01	35687258.1096850900
2006-10-01	-371492352.8336810500
2007-01-01	9177807.1537436600
2007-04-01	-5392314.7953428900
2007-07-01	63244273.9615457000
2007-10-01	-14386378004.7123000000
2008-01-01	-200759797.7719910000
2008-04-01	-495172415.1837360000
2008-07-01	115462235.1780200000
2008-10-01	977148290.0951810000
2009-01-01	1189168090.9322100000
2009-04-01	-227424420.5497700000
2009-07-01	715211868.5593240000
2009-10-01	556709238.3957380000
2010-01-01	121771618.9101840000
2010-04-01	181708165.6733130000
2010-07-01	303700802.8196590000
2010-10-01	-541570843.5415510000
2011-01-01	228326657.0614910000
2011-04-01	-1439297.1743667999
2011-07-01	473008000.1559110000
2011-10-01	1106156004.2111301000
2012-01-01	-11594183618.3397000000
2012-04-01	175682372.9107560000
2012-07-01	141402312.5535670000
2012-10-01	155736429.8448580200
2013-01-01	-212438646.1146640200
2013-04-01	177617340.7171999800
2013-07-01	523219506.1236119000
2013-10-01	1261752395.1469000000
2014-01-01	35632802.7588131000
2014-04-01	27425154.9021623020
2014-07-01	100663740.4134060000
2014-10-01	-103637361.9584540000
2015-01-01	-1210159279.4757700000
2015-04-01	-2245276906.8316903000
2015-07-01	62255055.8392473000
2015-10-01	-39393846.2930952000
2016-01-01	17634143.5475875000
2016-04-01	-42910261.8170423000
2016-07-01	40171396.9943863000
2016-10-01	-185331582.6996240000
2017-01-01	-145981322.5782320200
2017-04-01	-37392416.3031505940
2017-07-01	-41107170.9702885000
2017-10-01	81248711.6653783900
2018-01-01	24577552.3519351000
2018-04-01	-58369162.1085857000