Quarter	US Dollars, sum over component sub-periods
2004-01-01	1052130000.0000001
2004-04-01	-179530000.0000000
2004-07-01	-1598680000.0000000
2004-10-01	-1800650000.0000000
2005-01-01	821520000.0000000
2005-04-01	-2106889999.9999998
2005-07-01	-84190000.0000000
2005-10-01	696210000.0000000
2006-01-01	3006640000.0000000
2006-04-01	-643870000.0000000
2006-07-01	3325440000.0000000
2006-10-01	-1462540000.0000000
2007-01-01	2585670000.0000000
2007-04-01	1734680000.0000000
2007-07-01	2367870000.0000000
2007-10-01	2981440000.0000000
2008-01-01	1578260000.0000000
2008-04-01	-718790000.0000000
2008-07-01	-2409840000.0000000
2008-10-01	1731970000.0000000
2009-01-01	2137400000.0000000
2009-04-01	3400710000.0000000
2009-07-01	654620000.0000000
2009-10-01	1554470000.0000000
2010-01-01	1051450000.0000000
2010-04-01	1686130000.0000000
2010-07-01	-449380000.0000000
2010-10-01	1578770000.0000000
2011-01-01	2902240000.0000000
2011-04-01	297350000.0000000
2011-07-01	5501670000.0000000
2011-10-01	-10448000000.0000000
2012-01-01	-3153680000.0000000
2012-04-01	-7809150000.0000000
2012-07-01	-4984010000.0000000
2012-10-01	-8696110000.0000000
2013-01-01	-6650300000.0000000
2013-04-01	-11166240000.0000000
2013-07-01	-7213740000.0000000
2013-10-01	-4220029999.9999995
2014-01-01	-4396520000.0000000
2014-04-01	-10048650000.0000000
2014-07-01	-8093390000.0000000
2014-10-01	-7128910000.0000000
2015-01-01	-4307550000.0000000
2015-04-01	-4923530000.0000000
2015-07-01	-4625560000.0000000
2015-10-01	-4084520000.0000000
2016-01-01	-4705350000.0000000
2016-04-01	-4939720000.0000000
2016-07-01	-4350680000.0000000
2016-10-01	-3221030000.0000000
2017-01-01	-2280780000.0000000
2017-04-01	-4598850000.0000000
2017-07-01	-4820350000.0000000
2017-10-01	-5896810000.0000000
2018-01-01	-6244830000.0000000
2018-04-01	-8323500000.0000000