Quarter	US Dollars, sum over component sub-periods
1999-01-01	-1486083691.0153801
1999-04-01	-2369550991.5098000
1999-07-01	-1084951748.0456000
1999-10-01	-3804884612.9187200
2000-01-01	-1843814953.1482399
2000-04-01	-1137747982.9803698
2000-07-01	-1990905001.7994800
2000-10-01	-3171456005.1365700
2001-01-01	-1416174837.2414100
2001-04-01	-1404733895.7618900
2001-07-01	-4500769521.5302510
2001-10-01	-4394228355.6387100
2002-01-01	-1260768311.6092600
2002-04-01	-2517076985.9499600
2002-07-01	-2527390297.8440700
2002-10-01	-5530881649.0525000
2003-01-01	-4838370796.2788910
2003-04-01	-3124383277.7943397
2003-07-01	-2130643611.5284600
2003-10-01	3806735327.2822104
2004-01-01	-2502924979.1074700
2004-04-01	-1857404942.0499100
2004-07-01	-1702333558.7517100
2004-10-01	-4006290697.9662200
2005-01-01	-4817246797.8893200
2005-04-01	-2470834555.9608400
2005-07-01	-3350944558.6591100
2005-10-01	-6128412135.0738700
2006-01-01	-5199043923.7497900
2006-04-01	-6722323976.6920500
2006-07-01	-1518620287.0603500
2006-10-01	-4789284572.3478310
2007-01-01	-3303355017.6938800
2007-04-01	-2063504064.3078400
2007-07-01	-2893837996.3969903
2007-10-01	-20359449130.3593000
2008-01-01	-4615827320.5651300
2008-04-01	-5561083013.5508400
2008-07-01	-4562107848.1247690
2008-10-01	-4243765530.8542300
2009-01-01	-2396811222.2268200
2009-04-01	-3511187925.1704900
2009-07-01	-2163658944.7656703
2009-10-01	-6448081062.0128110
2010-01-01	-3075563638.5201600
2010-04-01	-2934269204.0056900
2010-07-01	-3737587624.8286700
2010-10-01	-8473887050.9129305
2011-01-01	-3476991147.1441803
2011-04-01	-3955476494.5948500
2011-07-01	-3754977539.1481400
2011-10-01	-6171434320.6931400
2012-01-01	-14786551131.3048000
2012-04-01	-2694608541.5866500
2012-07-01	-2913888716.9224400
2012-10-01	-7789546879.7651610
2013-01-01	-2863303491.1106900
2013-04-01	-3366632212.5058700
2013-07-01	-722175379.0850459
2013-10-01	-4030529873.2567300
2014-01-01	-5541586075.2023400
2014-04-01	-8831311255.8198010
2014-07-01	-5398225531.9588900
2014-10-01	-7780918325.8326100
2015-01-01	-4666036462.7898800
2015-04-01	-7394150333.7690600
2015-07-01	-2928322189.0386000
2015-10-01	-6607442296.8602000
2016-01-01	-5393072163.8381100
2016-04-01	-4549165283.0562300
2016-07-01	-3111274697.2152200
2016-10-01	-5997631718.7363205
2017-01-01	-23321102338.2770000
2017-04-01	-10572265798.9357990
2017-07-01	-9223979369.4930800
2017-10-01	-6937580210.4189900
2018-01-01	-1865804886.7971500
2018-04-01	-3407091376.7954497