Quarter	US Dollars, sum over component sub-periods
2004-01-01	293431298.239300000
2004-04-01	-44591134.386081696
2004-07-01	143303335.387004020
2004-10-01	317667770.953850000
2005-01-01	198048321.347637980
2005-04-01	127398733.572159990
2005-07-01	193849969.971179000
2005-10-01	269326016.855581000
2006-01-01	89712270.297038300
2006-04-01	213016546.254680000
2006-07-01	-266885557.049224020
2006-10-01	492477682.652902000
2007-01-01	-123209738.469765990
2007-04-01	-136392271.389266000
2007-07-01	937765889.410264000
2007-10-01	1219052751.423130000
2008-01-01	160866542.575703980
2008-04-01	-348959289.969906030
2008-07-01	490868749.026154000
2008-10-01	572931441.997543900
2009-01-01	207565354.320902000
2009-04-01	-367905726.768211000
2009-07-01	552604280.654005000
2009-10-01	306923217.816077000
2010-01-01	608282985.816922000
2010-04-01	169954054.423731000
2010-07-01	82965987.417724800
2010-10-01	228250217.883457000
2011-01-01	-513423112.220154940
2011-04-01	704778456.981894000
2011-07-01	-183390908.433053000
2011-10-01	599164866.466004000
2012-01-01	1101536240.391100000
2012-04-01	-977496026.853820000
2012-07-01	-350430820.417410000
2012-10-01	-77294717.733891800
2013-01-01	899961178.479216900
2013-04-01	-806822515.210520000
2013-07-01	-84096196.380908000
2013-10-01	-9526467.226709260
2014-01-01	1100865892.156010000
2014-04-01	-1169587063.651780000
2014-07-01	-94164860.644353000
2014-10-01	-334682936.867246000
2015-01-01	6235157127.797220000
2015-04-01	-1656914812.945420000
2015-07-01	469858916.972462000
2015-10-01	579188025.124231000
2016-01-01	-484476051.290531040
2016-04-01	-64173425.764803000
2016-07-01	657661562.405041000
2016-10-01	1003010215.533559900
2017-01-01	-489836598.461410000
2017-04-01	717120558.077423000
2017-07-01	-479908603.719131000
2017-10-01	-757485271.409004000
2018-01-01	-711557006.917048900
2018-04-01	-818621542.535965000