Quarter	US Dollars, sum over component sub-periods
1999-01-01	62096948249.0903000
1999-04-01	13466167901.1771000
1999-07-01	-28197629570.0736000
1999-10-01	-21831900663.5967030
2000-01-01	-690097800.5197150
2000-04-01	-19373374297.7328000
2000-07-01	4799462786.3270100
2000-10-01	12382372849.6641000
2001-01-01	34363160882.2849040
2001-04-01	20948675302.9333000
2001-07-01	-6332758953.6237400
2001-10-01	12704130571.4069000
2002-01-01	8108821361.6921700
2002-04-01	8076974596.3240300
2002-07-01	-13464725176.8535000
2002-10-01	57681924185.7571950
2003-01-01	10218871002.8353000
2003-04-01	16596511332.7467000
2003-07-01	-12966443238.1637000
2003-10-01	8877860801.7168700
2004-01-01	42975150632.7347000
2004-04-01	23442038883.1813000
2004-07-01	-11172824865.2396000
2004-10-01	71498434631.0820000
2005-01-01	16883952052.2323000
2005-04-01	84142783872.5542000
2005-07-01	21138828510.0069000
2005-10-01	152359316732.4380000
2006-01-01	53669684353.8892000
2006-04-01	-13466266376.1646000
2006-07-01	63049188720.3536000
2006-10-01	50059884448.3414000
2007-01-01	165953108953.9930000
2007-04-01	79609439481.0448000
2007-07-01	-39117958320.7369000
2007-10-01	74001163572.1843100
2008-01-01	139517571999.4110000
2008-04-01	-86825436989.1886000
2008-07-01	-29408381250.7964000
2008-10-01	-69606055212.9897900
2009-01-01	-86572477867.2091000
2009-04-01	6260299768.0676100
2009-07-01	28956067710.4928000
2009-10-01	40629437626.5792000
2010-01-01	109092149091.1610000
2010-04-01	2264363295.3135896
2010-07-01	75824397885.2556000
2010-10-01	75188764105.2236000
2011-01-01	49247462199.7299960
2011-04-01	95229658244.8052000
2011-07-01	62502006372.8404000
2011-10-01	-111149142172.2300000
2012-01-01	33308525022.3062970
2012-04-01	-6242494827.2230610
2012-07-01	-83457396756.1732000
2012-10-01	-3605298350.9084500
2013-01-01	38828770429.9144060
2013-04-01	41245097332.2787000
2013-07-01	-27982309030.0286000
2013-10-01	-59133584473.7400000
2014-01-01	90266112342.5565000
2014-04-01	36548132680.3666000
2014-07-01	30579260196.3723000
2014-10-01	-38892729521.4690000
2015-01-01	93917365923.8182000
2015-04-01	-67965527412.7587050
2015-07-01	-18896632842.0630000
2015-10-01	-64599342279.6272000
2016-01-01	88015316847.9242000
2016-04-01	90483062345.7311000
2016-07-01	48949963109.7984000
2016-10-01	-34400558774.8151000
2017-01-01	151432712697.2850000
2017-04-01	-33571791178.5286980
2017-07-01	47798243913.6523060
2017-10-01	-22952172286.6892000
2018-01-01	124389450208.3790000
2018-04-01	113757923327.4640000