Quarter	US Dollars, sum over component sub-periods
2003-01-01	5163648442.4454100
2003-04-01	8025073750.3152100
2003-07-01	-10737642334.3037000
2003-10-01	2526162509.3211203
2004-01-01	-4300515422.8708300
2004-04-01	-4450974272.2667690
2004-07-01	-264098289.6576670
2004-10-01	-6684275875.9354800
2005-01-01	-27954708567.0770000
2005-04-01	8375390398.7772500
2005-07-01	-13890115191.4722000
2005-10-01	-4037875133.1487904
2006-01-01	-8392616889.0128100
2006-04-01	-11898930724.5800000
2006-07-01	18837774102.1838000
2006-10-01	11843898554.5794010
2007-01-01	21441979741.7605000
2007-04-01	-10355940564.4560000
2007-07-01	3893647475.1977696
2007-10-01	-37209248026.2894060
2008-01-01	7607897411.0908300
2008-04-01	-8025854477.0158800
2008-07-01	-11313799537.8982000
2008-10-01	24135825439.6224980
2009-01-01	26211138249.3657000
2009-04-01	22978037412.7920000
2009-07-01	26152437185.7402000
2009-10-01	2888390637.4060000
2010-01-01	30224269320.8662000
2010-04-01	-6293710101.9574600
2010-07-01	13600626590.9536000
2010-10-01	-3816784992.5785500
2011-01-01	24348918776.0964000
2011-04-01	-1197495249.0731800
2011-07-01	-2264790544.0300903
2011-10-01	-25685454402.2910000
2012-01-01	31888267035.8045000
2012-04-01	9408624598.8774810
2012-07-01	3580106338.1925200
2012-10-01	-4480017965.2037300
2013-01-01	18402992530.1939000
2013-04-01	35185211590.1624000
2013-07-01	-1614695134.0878000
2013-10-01	-13943248690.2749000
2014-01-01	16965325590.4365000
2014-04-01	-12433193974.8953000
2014-07-01	-4283507059.1704397
2014-10-01	2051520309.6113300
2015-01-01	27586002924.2361030
2015-04-01	-4607794873.8230600
2015-07-01	-1718684220.1335100
2015-10-01	-10333224737.3805000
2016-01-01	7687384452.7764100
2016-04-01	8303135661.5976900
2016-07-01	-4002633361.6351000
2016-10-01	5081533395.4152800
2017-01-01	9763699699.1557500
2017-04-01	-15846686073.8851990
2017-07-01	-9379481924.8206900
2017-10-01	-33813594263.5218000
2018-01-01	-5791700211.7335100
2018-04-01	-2443166356.8308000