Quarter	US Dollars, sum over component sub-periods
2004-01-01	1896227076.69137000
2004-04-01	298426039.13893497
2004-07-01	-1917254003.16905000
2004-10-01	-706270649.24310400
2005-01-01	-3279420251.14056000
2005-04-01	-625192124.16140200
2005-07-01	25002539.23918870
2005-10-01	-1861881556.08632000
2006-01-01	1144016752.62939980
2006-04-01	214277656.82929400
2006-07-01	4039539791.12884000
2006-10-01	-1557768191.55200000
2007-01-01	-1814541212.44129010
2007-04-01	372237444.85762000
2007-07-01	-1098668962.28518000
2007-10-01	-1966846195.06591000
2008-01-01	-1379761616.96115000
2008-04-01	-390641541.88335400
2008-07-01	369835541.89797500
2008-10-01	-1561317610.47387000
2009-01-01	-864814037.24577600
2009-04-01	-2132886990.80867980
2009-07-01	-1844960536.13563010
2009-10-01	-761377409.32849500
2010-01-01	-322556413.27231600
2010-04-01	-1238792242.76163000
2010-07-01	-1026379479.14626990
2010-10-01	1584264382.41027000
2011-01-01	-941471473.36851910
2011-04-01	-1802575781.17698000
2011-07-01	196404217.37817103
2011-10-01	-101992703.43335201
2012-01-01	4598199979.75166000
2012-04-01	4621087584.09634000
2012-07-01	2295347450.59299000
2012-10-01	2497493213.27870000
2013-01-01	3862820723.60670000
2013-04-01	2167453960.69313000
2013-07-01	-806817724.50605610
2013-10-01	1916720305.11959000
2014-01-01	636730775.45171500
2014-04-01	-477197695.29762500
2014-07-01	564776564.63521300
2014-10-01	-353116216.40784100
2015-01-01	-99627066.26381920
2015-04-01	365880591.51720303
2015-07-01	-1450209291.82674980
2015-10-01	-1805879570.48597000
2016-01-01	-138317813.45138898
2016-04-01	-979709030.32804990
2016-07-01	-1654280445.67160000
2016-10-01	-2988040767.35074040
2017-01-01	426542506.77420600
2017-04-01	-1562343135.30163980
2017-07-01	-238656489.74750400
2017-10-01	-892322807.24672210
2018-01-01	-2291856756.81795020
2018-04-01	-1105559578.63221000